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Previous Year Questions

TLS Online TPP Program

QUESTION ID:1

What will be BOD5 for a wastewater sample when 21 ml of sample is diluted to 300 ml in BOD
bottle to determine dissolved oxygen.
[Given: Initial DO₁ = 10 mg/l : Five days later DO5 = 5 mg/l]

QUESTION ID:2

What will be the concentration of 40 ppb SO2 in µg/m³ unit at 25°C?

QUESTION ID:3

National Ambient air quality standards typically include following components

QUESTION ID:4

Primary air pollutants differ from secondary air pollutants as they

QUESTION ID:5

Continuity equation expresses the law of conservation of (Answer is not confirm)

QUESTION ID:6

Which of the following statements correctly represent the environmental wisdom worldwide?

QUESTION ID:7

Exposure concentration is_

QUESTION ID:8

In ecotoxicology studies, ED-50 is.

QUESTION ID:9

A hypothesis, that predicts a linear relationship in which rate of ecosystem processes is maximum with greatest number of species, is known as

QUESTION ID:10

Which of the following is not a phase of secondary succession?

QUESTION ID:11

The Concept of r- and k- selection was originally given by (Answer is not confirm)

QUESTION ID:12

The strong and rapidly moving circumpolar upper air westerly circulation in a narrow belt of a few hundred kilometers width in the upper limit of the troposphere, is called

QUESTION ID:13

Coriolis effect is

QUESTION ID:14

The boundary between fresh and salty groundwater along shorelines is determined by

QUESTION ID:15

The sum of diffused and direct solar radiation, is called

QUESTION ID:16

Which one of the following elements is used in making Photovoltaic Solar cell

QUESTION ID:17

The destructive distillation of coal yielding products such as gasoline, diesel oil and other
products, is known as

QUESTION ID:18

Which process facilitates conversion of raw fat into biodiesel in the presence of alcohol?

QUESTION ID:19

Which plant/tree has been recommended in India for extraction of biodiesel?

QUESTION ID:20

Anammox bacteria is required for which of the following steps in wastewater treatment?

QUESTION ID:21

Which of the following is an INCORRECT statement?

QUESTION ID:22

The use of bacteria and other microorganisms to breakdown hazardous waste into relatively harmless components, is termed as

QUESTION ID:23

Which of the following is INCORRECT about the given decomposition reaction?
 

QUESTION ID:24

There is often a formal review and licensing procedures of Environmental Impact Assessment. Who would NOT carry out such a procedure?

QUESTION ID:25

"A financial mechanism through which developing countries would be rewarded for emission reduction achieved by taking action to reduce deforestation and forest degradation" refers to

QUESTION ID:26

Which of the following principle was introduced in 1972 by the Organization for Economic Cooperation and Development (OECD) guiding principles concerning Institutional Economic Aspects of Environmental Pollution?

QUESTION ID:27

Which section of Environmental (Protection) Act, 1986 deals with offences by companies?

QUESTION ID:28

Which Article of the Constitution of India states that it shall be the duty of every citizen of India to protect and improve the natural environment and to have compassion for living creatures

QUESTION ID:29

Which among the following is the first major Environmental Protection act to be promulgated in
India ?

QUESTION ID:30

Which of the following sections of the Indian Penal code refers to making atmosphere noxious to health as a punishable offence?

QUESTION ID:31

Which of the following is NOT included during Environmental Impact Assessment (EIA) ?

QUESTION ID:32

To find out the degree of linear relationship between age and height of trees, the parameter to be estimated is:

QUESTION ID:33

The Coefficient of Variation can be measured b

QUESTION ID:34

Which of the following is a nominal variable?

QUESTION ID:35

Hysteresis is the best defined as:

QUESTION ID:36

Which one of the following is correctly matched pair?

QUESTION ID:37

Who among the following received Noble Prize for peace and started the Green Belt Movement? 

QUESTION ID:38

Genetic Engineering is possible because

QUESTION ID:39

LEED, one of the Sustainable Habitat green rating systems, refers to:

QUESTION ID:40

Prerak Dauur Samman, the annual award given under which of the following scheme of Government of India?

QUESTION ID:41

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Active ingredient in most pesticides are organic chlorine compounds.
Reason R : Organo chlorines have low solubility in water, high solubility in hydrocarbon like environment and have relatively high toxicity to insects and low toxicity to humans.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:42

Given below are two statements, one is labelled as Assertion A and the other is labelled as
Reason R
Assertion A: Temperature of large waterbody varies more slowly than that of the land of comparable size.
Reason R: Specific heat of water is high i.e., about five times of soil.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:43

Given below are two statements, one is labelled as Assertion A and the other is labelled as
Reason R
Assertion A: Small increase in wind velocity and height of turbine produces a large increase in energy yield.
Reason R: Energy yield from wind is proportional to third power of wind speed and wind speed increases with height above ground.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:44

Given below are two statements, one is labelled as Assertion A and the other is labelled as
Reason R
Assertion A: a and ẞ particles, emitted during a radioactive decay of a nucleus are simply nucleus of Helium and electron and are called as ionizing radiations.
Reason R: a and ẞ particles produced in the radioactive decay are ejected with an incredible amount of energy of motion. When this energy is absorbed by matter encountered by the particle, it often ionises atoms and molecules.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:45

Given below are two statements, one is labelled as Assertion A and the other is labelled as
Reason R
Assertion A: Dematerialization, the progressive decrease in size and weight of a product as a result of technological improvement is an example of source reduction.
Reason R: New product is more durable than the one being replaced.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:46

Arrange the following elements of image interpretations in order of increasing complexity
Location
Tone
Situation
Pattern
Texture
Choose the correct answer from the options given below

QUESTION ID:47

Basalts are composed of the following minerals
Olivine
Pyroxene
Quartz
Orthoclase
Plagioclase
Choose the correct answer from the options given below

QUESTION ID:48

Arrange the following minerals with increasing order of stability for weathering.
Illite
Olivine
Calcite
Ca rich feldspar
Na rich feldspar
Choose the correct answer from the options given below

QUESTION ID:49

Choose the correct sequence of filtration processes used for sequential removal of particles from coarser (1 µm) to finer grain sizes.
Microfiltration
Ultrafiltration
Nanofiltration
Reverse Osmosis
Choose the correct answer from the options given below

QUESTION ID:50

In waste pollution prevention hierarchy, arrange following from least preferred to most preferred.
Waste Concentration
Waste Separation
Waste treatment
Recycling or Reuse
Landfill
Choose the correct answer from the options given below

QUESTION ID:51

Given below are two statements
Statement I: Key to nitrogen cycle is nitrogen fixing bacteria, which has ability to fix Nz or combine gases N₂ with hydrogen to form NH3.
Statement II: Nitrogen cycle includes fixation of molecular N₂ to ammonia to nitrite to nitrate only. It does not include denitrification process.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:52

Given below are two statements
Statement I: Halons used as fire extinguishers are bromine containing hydrogen free substances and are involved in catalytic destruction of ozone in Stratosphere.
Statement II: In order to protect ozone layer in stratosphere, use of CFC was globally replaced by HCFC's, HFC's followed by Halons after Kyoto protocol.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:53

Given below are two statements
Statement I: Yellow carotenes and pale-yellow xanthophyll pigments are with strong reflectance primarily in the blue wavelength regime of Electromagnetic Radiation (EMR).
Statement II: There are many other pigments present in the palisade mesophyll cells that are usually marked by the abundance of chlorophyll pigments.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:54

Given below are two statements
Statement I: Ecotypes are discrete entity because they have clear differences in morphology, physiology and phenology in relation to particular environmental conditions.
Statement II: The environmentally induced variations in ecotypes are not heritable and do not have adaptive value to a particular habitat.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:55

Given below are two statements
Statement I: A confined aquifer is an aquifer which is confined between impervious beds such as aquicludes or aquifuges.
Statement II: Recharge of this aquifer takes place only in the area where it is exposed at the ground surface.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:56

Given below are two statements
Statement I: Noise pollution exists in the form of energy and is highly subjective in nature unlike air pollution.
Statement II: Noise pollution exists irrespective of loudness of sound and causes both physiological and psychological stress among individual or group of individuals.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:57

Given below are two statements about Baghouse filter used to control air pollution
Statement I: Baghouse filters are fabric bag filter which can be repeatedly cleaned and reused. Collection efficiency can be very high (99.9% for all size of particles).
Statement II: Collection efficiency of baghouse filters decreases as dust collected on filters and lead to decrease in pressure drop which increases airflow or decreases cost of forcing air through filters.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:58

Given below are two statements
Statement I: An incineration process used to destroy highly toxic and hazardous waste differs from the municipal solid waste incineration process.
Statement II: Incineration emits small but significant amounts of numerous toxic chemicals and produces ash residues (bottom and flyash) which must be buried in approved landfills.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:59

Given below are two statements
Statement I: Student t-test is a non-parametric test.
Statement II: Paired t-test compares the two correlated sample means.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:60

Which of the following compounds in dirty dozens' list of POPs are formed as byproduct of other compounds and not applied directly in environment?
DDT
Dioxins
Hexachlorobenzene
Furans
Heptachlor
Choose the correct answer from the options given below:

QUESTION ID:61

Which of the following is correct for AAS?
It can only analyze single element at a time.
It has low linear dynamic range.
It can analyze Hg in vapor phase.
It can analyze arsenic in hydride form.
It works on principle of Beer Lambert's law.
Choose the correct answer from the options given below:

QUESTION ID:62

The individual plant populations have following group characteristics
Density
Age
Ratios
Natality
Dominance
Choose the correct answer from the options given below:

QUESTION ID:63

In the layered structure of the Earth, mantle is mostly made up of
Na and K
Mg and Fe
Ni
Si
Al
Choose the correct answer from the options given below:

QUESTION ID:64

Which of the following is not true about Solar Energy?
It has low environmental impact.
It is intermittent in its availability and requires efficient storage for continuous power supply.
Receives high regulatory credit from government in recognition of low amount of air pollution and GHG emission.
It has low operating cost.
It provides low density of energy per unit collection surface area.

QUESTION ID:65

Deep open Benthos Communities
extend from the boundary of continental shelf to the deepest oceans.
often are entirely heterotrophic living on and in mud surface and bacteria.
include plankton and large swimming animals.
are rich in biodiversity through strange, occupying permanent cold and dark water.
are nutrient rich water supporting growth of organisms.
Choose the correct answer from the options given below:
1. B, C and D only
2. A, B and C only
3. A, B and D only
4. B, D and E only

QUESTION ID:66

BOD test is commonly used to
determine amount of oxygen required for biological treatment of organic matter present in waste water.
determine size of waste water treatment facility.
assess efficiency of treatment process.
determine compliance with wastewater discharge limits.
Choose the correct answer from the options given below:

QUESTION ID:67

Which of the following recognise low-waste approach?
Linear Economy/Path of development
Circular Economy/Path of development
Waste Management
Waste Reduction
Primary pollution and waste prevention
Choose the correct answer from the options given below

QUESTION ID:68

Which one of the following are four major waste types identified based on Physical characteristics?
Solid Waste
Sludge and Slurry Waste
Combustible Waste
Reactive Waste
Waste Water
Choose the correct answer from the options given below:

QUESTION ID:69

EIA is usually required for a development project when
Limited impacts are expected in the environment.
There are potentials for transboundary impact.
Many people are likely to be affected by the project.
No cumulative impacts are expected.
There are protected areas in the project area of influence.
Choose the correct answer from the options given below:

QUESTION ID:70

The facts related to P-value:
It is the probability of type-ll error which is fixed in advance.
It is the probability of type-I error which is calculated based on data.
It is the probability of type-I error which is fixed in advance.
It should be less than the level of significance for having significant result.
It is the probability of type-ll error which is calculated based on data.
Choose the correct answer from the options given below:

QUESTION ID:71

The 95% confidence interval of sample mean can be calculated by:
Sample mean ± 1.96 (Standard deviation)
Sample mean ± 1.96 (Standard Error)
Sample mean ± 1.96 (Standard Error//Sample size)
Sample mean ± 1.96 (Standard deviation/Sample size)
Sample mean ± 1.96 (Variance//Sample size)
Choose the correct answer from the options given below:

QUESTION ID:72

Which of the following are parametric tests?
A. x²-test
B. Paired t-test
C. McNemar's Test
D. F-test
E. Wilcoxon - signed-rank test
Choose the correct answer from the options given below:

QUESTION ID:73

Which of the following are the properties of Normal Distribution?
A. Median + 2SE covers the 95% of the observations.
B. Mode + 2SE covers the 95% of the observations.
C. Mean ± 2SD covers the 95% of the observations.
D. It is bell shaped and symmetric.
E. Mean ± 2SE covers the 95% of the observations.
Choose the correct answer from the options given below:

QUESTION ID:74

Which of the following is an example of Type-ll error?
Probability of not rejecting null hypothesis, when it is actually false.
Probability of rejecting null hypothesis, when it is actually true.
When a drug is actually effective, but declared as not effective.
When a drug is actually not effective, but declared as effective.
When a person is actually not having disease, but declared as diseased by the physician,
Choose the correct answer from the options given below:

QUESTION ID:75

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QUESTION ID:76

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QUESTION ID:77

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QUESTION ID:78

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QUESTION ID:79

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QUESTION ID:80

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QUESTION ID:81

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QUESTION ID:82

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QUESTION ID:83

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QUESTION ID:84

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QUESTION ID:85

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QUESTION ID:86

Read the given passage and answer the questions that follow
The chemistry of rainwater has been extensively studied. The pH of pure water, i.e, neither acidic nor basic, is 7.0. Even in the pristine environment rain is slightly acidic (5.6 pH) in comparison to neutral pH of 7 for water because of presence of natural CO₂ in atmosphere. Acid forming precursor gases, e.g., SO₂ and NOx further lowers pH of rainwater and such rain water having pH less than 5.6 ( pH of natural rainwater) are termed as acidic rain.
However nitrogen oxide species before combining with water droplets to form nitric acid undergoes photodissociation.
Acidic rain adversely impacts oil, monuments and fresh water lakes that are downwind from large source of SO₂ and NOx such as coal fired thermal power plants. Acidic rainwater reduces cation exchange capacity of the soil and hence crop productivity of the soil. Cations are washed away with acidic rainwater leads to enrichment of basic nutrients in lakes in downstream areas. Similarly acidic rainwater decreases lake water pH and introduces Al³ toxicity and increases solubility of other metals. The effect of acid rain depends on buffering capacity of soil and lakes. Lakes and soils having calcium carbonate are less vulnerable to change in pH due to acid rain.
The Eastern United states and Eastern Europe have been severally impacted by acid rain whereas cases of acidic rain are very limited in northern India irrespective of high SO₂ and NOX emissions. This is because of carbonate rich dust present in atmosphere. Emission control, e.g, sulphur reduction in coal SO2 and NOx reduction from smoke stack of thermal power plants are partially directed towards reducing chances of acid rain.
What could be the pH of rain water in pristine environment in comparison to the pure water?

QUESTION ID:87

Read the given passage and answer the questions that follow
The chemistry of rainwater has been extensively studied. The pH of pure water, i.e, neither acidic nor basic, is 7.0. Even in the pristine environment rain is slightly acidic (5.6 pH) in comparison to neutral pH of 7 for water because of presence of natural CO₂ in atmosphere. Acid forming precursor gases, e.g., SO₂ and NOx further lowers pH of rainwater and such rain water having pH less than 5.6 ( pH of natural rainwater) are termed as acidic rain.
However nitrogen oxide species before combining with water droplets to form nitric acid undergoes photodissociation.
Acidic rain adversely impacts oil, monuments and fresh water lakes that are downwind from large source of SO2 and NOx such as coal fired thermal power plants. Acidic rainwater reduces cation exchange capacity of the soil and hence crop productivity of the soil. Cations are washed away with acidic rainwater leads to enrichment of basic nutrients in lakes in downstream areas. Similarly acidic rainwater decreases lake water pH and introduces Al3+ toxicity and increases solubility of other metals. The effect of acid rain depends on buffering capacity of soil and lakes. Lakes and soils having calcium carbonate are less vulnerable to change in pH due to acid rain.
The Eastern United states and Eastern Europe have been severally impacted by acid rain whereas cases of acidic rain are very limited in northern India irrespective of high SO₂ and NOx emissions. This is because of carbonate rich dust present in atmosphere. Emission control, e.g, sulphur reduction in coal SO2 and NOx reduction from smoke stack of thermal power plants are partially directed towards reducing chances of acid rain.
The acid rain is in fact a cocktail of H₂SO, and HNO3 and the ratio of two may vary depending on relative quantities of oxides of Sulphur and nitrogen emitted. On an average, the acidity in rainwater is ascribed as one of the following combinations :

QUESTION ID:88

The chemistry of rainwater has been extensively studied. The pH of pure water, i.e, neither acidic nor basic, is 7.0. Even in the pristine environment rain is slightly acidic (5.6 pH) in comparison to neutral pH of 7 for water because of presence of natural CO2 in atmosphere. Acid forming precursor gases, e.g., SO2 and NOx further lowers pH of rainwater and such rain water having pH less than 5.6 ( pH of natural rainwater) are termed as acidic rain.
However nitrogen oxide species before combining with water droplets to form nitric acid undergoes photodissociation.
Acidic rain adversely impacts oil, monuments and fresh water lakes that are downwind from large source of SO₂ and NOx such as coal fired thermal power plants. Acidic rainwater reduces cation exchange capacity of the soil and hence crop productivity of the soil. Cations are washed away with acidic rainwater leads to enrichment of basic nutrients in lakes in downstream areas. Similarly acidic rainwater decreases lake water pH and introduces Al³ toxicity and increases solubility of other metals. The effect of acid rain depends on buffering capacity of soil and lakes. Lakes and soils having calcium carbonate are less vulnerable to change in pH due to acid rain.
The Eastern United states and Eastern Europe have been severally impacted by acid rain whereas cases of acidic rain are very limited in northern India irrespective of high SO₂ and NOx emissions. This is because of carbonate rich dust present in atmosphere. Emission control. e.g, sulphur reduction in coal SO2 and NOx reduction from smoke stack of thermal power plants are partially directed towards reducing chances of acid rain.
Acid rain in a tropical environment does not result in

QUESTION ID:89

The chemistry of rainwater has been extensively studied. The pH of pure water, ie, neither acidic nor basic, is 7.0. Even in the pristine environment rain is slightly acidic (5.6 pH) in comparison to neutral pH of 7 for water because of presence of natural CO₂ in atmosphere. Acid forming precursor gases, e.g., SO2 and NOx further lowers pH of rainwater and such rain water having pH less than 5.6 ( pH of natural rainwater) are termed as acidic rain.

However nitrogen oxide species before combining with water droplets to form nitric acid undergoes photodissociation.

Acidic rain adversely impacts oil, monuments and fresh water lakes that are downwind from large source of SO₂ and NOx such as coal fired thermal power plants. Acidic rainwater reduces cation exchange capacity of the soil and hence crop productivity of the soil. Cations are washed away with acidic rainwater leads to enrichment of basic nutrients in lakes in downstream areas. Similarly acidic rainwater decreases lake water pH and introduces Al³ toxicity and increases solubility of other metals. The effect of acid rain depends on buffering capacity of soil and lakes. Lakes and soils having calcium carbonate are less vulnerable to change in pH due to acid rain.The Eastern United states and Eastern Europe have been severally impacted by acid rain whereas cases of acidic rain are very limited in northern India irrespective of high SO2 and NOx emissions. This is because of carbonate rich dust present in atmosphere. Emission control, e.g, sulphur reduction in coal SO2 and NOx reduction from smoke stack of thermal power plants are partially directed towards reducing chances of acid rain.

Which one of the following gases is dominantly responsible for acid rain?

QUESTION ID:90

The chemistry of rainwater has been extensively studied. The pH of pure water, i.e. neither acidic nor basic, is 7.0. Even in the pristine environment rain is slightly acidic (5.6 pH) in comparison to neutral pH of 7 for water because of presence of natural CO2 in atmosphere. Acid forming precursor gases, e.g., SO2 and NOx further lowers pH of rainwater and such rain water having pH less than 5.6 ( pH of natural rainwater) are termed as acidic rain.
However nitrogen oxide species before combining with water droplets to form nitric acid undergoes photodissociation.
Acidic rain adversely impacts oil, monuments and fresh water lakes that are downwind from large source of SO₂ and NOx such as coal fired thermal power plants. Acidic rainwater reduces cation exchange capacity of the soil and hence crop productivity of the soil. Cations are washed away with acidic rainwater leads to enrichment of basic nutrients in lakes in downstream areas. Similarly acidic rainwater decreases lake water pH and introduces Al³ toxicity and increases solubility of other metals. The effect of acid rain depends on buffering capacity of soil and lakes. Lakes and soils having calcium carbonate are less vulnerable to change in pH due to acid rain.
The chemistry of rainwater has been extensively studied. The pH of pure water, i.e. neither acidic nor basic, is 7.0. Even in the pristine environment rain is slightly acidic (5.6 pH) in comparison to neutral pH of 7 for water because of presence of natural CO2 in atmosphere. Acid forming precursor gases, e.g., SO2 and NOx further lowers pH of rainwater and such rain water having pH less than 5.6 ( pH of natural rainwater) are termed as acidic rain.
However nitrogen oxide species before combining with water droplets to form nitric acid undergoes photodissociation.
Acidic rain adversely impacts oil, monuments and fresh water lakes that are downwind from large source of SO₂ and NOx such as coal fired thermal power plants. Acidic rainwater reduces cation exchange capacity of the soil and hence crop productivity of the soil. Cations are washed away with acidic rainwater leads to enrichment of basic nutrients in lakes in downstream areas. Similarly acidic rainwater decreases lake water pH and introduces Al³ toxicity and increases solubility of other metals. The effect of acid rain depends on buffering capacity of soil and lakes. Lakes and soils having calcium carbonate are less vulnerable to change in pH due to acid rain.

QUESTION ID:91

Read the given passage and answer the questions that follow
Pesticides have not been as effective in reducing crop losses in United States as agriculture experts hoped. Pesticides can promote genetic resistance to their effects, wipe out natural enemies of pests species, create new pests species, end up in the environment, and sometimes harm wildlife and people. Use of synthetic pesticides increased 33 fold since 1942 whereas 37% food supply is lost to pests today compared to 31% in 1940s. Since 1942, loses attributed to insects almost doubled from 7 to 13% despite a 10 fold increase in synthetic insecticides. The estimated environmental, health and social cost of pesticides was in the range of 100-200 billions USD per year. Alternative pest management practices could halve the use of chemical pesticides on forty major US crops without reducing crop yield. In fact, yield me actually increased without chemical pesticides. Sweden has reduced pesticides use with almost no decrease in crop yield. After a 2/3rd cut in pesticide use on rice in Indonesia yields increased by 15%. The pesticides make a circle of poison, residue of some banned/approved chemicals exported to other countries can return to the exporting countries on imported food. According to a study, only 0.1-0.2% of insecticides applied to crop by aerial or ground spraying reaches the target pests and can undergo bioaccumulation and bio-magnification. The wind can also carry persistent organic pesticide such as DDT from one country to another. In
2000, more than hundred countries reached an international agreement to ban or phase out the use
of twelve specially hazardous persistent organic pollutants (POPs), and nine of them were persistent 
hydrocarbon pesticide such as DDT and other chemically similar pesticides.
Which of the following characteristics of synthetic chemical pesticides is NOT globally true?

QUESTION ID:92

Read the given passage and answer the questions that follow
Pesticides have not been as effective in reducing crop losses in United States as agriculture experts hoped. Pesticides can promote genetic resistance to their effects, wipe out natural enemies of pests species, create new pests species, end up in the environment, and sometimes harm wildlife and people. Use of synthetic pesticides increased 33 fold since 1942 whereas 37% food supply is lost to pests today compared to 31% in 1940s. Since 1942, loses attributed to insects almost doubled from 7 to 13% despite a 10 fold increase in synthetic insecticides. The estimated environmental, health and social cost of pesticides was in the range of 100-200 billions USD per year. Alternative pest management practices could halve the use of chemical pesticides on forty major US crops without reducing crop yield. In fact, yield me actually increased without chemical pesticides. Sweden has reduced pesticides use with almost no decrease in crop yield. After a 2/3rd cut in pesticide use on rice in Indonesia yields increased by 15%. The pesticides make a circle of poison, residue of some banned/approved chemicals exported to other countries can return to the exporting countries on imported food. According to a study, only 0.1-0.2% of insecticides applied to crop by aerial or ground spraying reaches the target pests and can undergo bioaccumulation and bio-magnification. The wind can also carry persistent organic pesticide such as DDT from one country to another. In 2000, more than hundred countries reached an international agreement to ban or phase out the use
of twelve specially hazardous persistent organic pollutants (POPs), and nine of them were persistent  
hydrocarbon pesticide such as DDT and other chemically similar pesticides
Which of the following is NOT true about alternative pest management practices?

QUESTION ID:93

Read the given passage and answer the questions that follow
Pesticides have not been as effective in reducing crop losses in United States as agriculture experts hoped. Pesticides can promote genetic resistance to their effects, wipe out natural enemies of pests species, create new pests species, end up in the environment, and sometimes harm wildlife and people. Use of synthetic pesticides increased 33 fold since 1942 whereas 37% food supply is lost to pests today compared to 31% in 1940s. Since 1942, loses attributed to insects almost doubled from 7 to 13% despite a 10 fold increase in synthetic insecticides. The estimated environmental, health and social cost of pesticides was in the range of 100-200 billions USD per year. Alternative pest management practices could halve the use of chemical pesticides on forty major US crops without reducing crop yield. In fact, yield me actually increased without chemical pesticides. Sweden has reduced pesticides use with almost no decrease in crop yield. After a 2/3rd cut in pesticide use on rice in Indonesia yields increased by 15%. The pesticides make a circle of poison, residue of some banned/approved chemicals exported to other countries can return to the exporting countries on imported food. According to a study, only 0.1-0.2% of insecticides applied to crop by aerial or ground spraying reaches the target pests and can undergo bioaccumulation and bio-magnification. The wind can also carry persistent organic pesticide such as DDT from one country to another. In 2000, more than hundred countries reached an international agreement to ban or phase out the use of twelve specially hazardous persistent organic pollutants (POPs), and nine of them were persistent hydrocarbon pesticide such as DDT and other chemically similar pesticides.
Synthetic chemical pesticides are not known for contribution to

QUESTION ID:94

Read the given passage and answer the questions that follow
Pesticides have not been as effective in reducing crop losses in United States as agriculture experts hoped. Pesticides can promote genetic resistance to their effects, wipe out natural enemies of pests species, create new pests species, end up in the environment, and sometimes harm wildlife and people. Use of synthetic pesticides increased 33 fold since 1942 whereas 37% food supply is lost to pests today compared to 31% in 1940s. Since 1942, loses attributed to insects almost doubled from 7 to 13% despite a 10 fold increase in synthetic insecticides. The estimated environmental, health and social cost of pesticides was in the range of 100-200 billions USD per year. Alternative pest management practices could halve the use of chemical pesticides on forty major US crops without reducing crop yield. In fact, yield me actually increased without chemical pesticides. Sweden has reduced pesticides use with almost no decrease in crop yield. After a 2/3rd cut in pesticide use on rice in Indonesia yields increased by 15%. The pesticides make a circle of poison, residue of some banned/approved chemicals exported to other countries can return to the exporting countries on imported food. According to a study, only 0.1-0.2% of insecticides applied to crop by aerial or ground spraying reaches the target pests and can undergo bioaccumulation and bio-magnification. The wind can also carry persistent organic pesticide such as DDT from one country to another. In 2000, more than hundred countries reached an international agreement to ban or phase out the use of twelve specially hazardous persistent organic pollutants (POPs), and nine of them were persistent hydrocarbon pesticide such as DDT and other chemically similar pesticides.
The international agreement to ban or phase out 12 persistent organic pollutants including 9 hydrocarbon pesticides such as DDT have been executed because
nearly 98-99% of them goes in environment after their use via aerial or water spraying.
they enter in the circle of poison.
they reduce crop yield.
they affect human health.
they affect life-forms.
Choose the correct answer from the options given below:

QUESTION ID:95

Read the given passage and answer the questions that follow
Pesticides have not been as effective in reducing crop losses in United States as agriculture experts hoped. Pesticides can promote genetic resistance to their effects, wipe out natural enemies of pests species, create new pests species, end up in the environment, and sometimes harm wildlife and people. Use of synthetic pesticides increased 33 fold since 1942 whereas 37% food supply is lost to pests today compared to 31% in 1940s. Since 1942, loses attributed to insects almost doubled from 7 to 13% despite a 10 fold increase in synthetic insecticides. The estimated environmental, health and social cost of pesticides was in the range of 100-200 billions USD per year. Alternative pest management practices could halve the use of chemical pesticides on forty major US crops without reducing crop yield. In fact, yield me actually increased without chemical pesticides. Sweden has reduced pesticides use with almost no decrease in crop yield. After a 2/3rd cut in pesticide use on rice in Indonesia yields increased by 15%. The pesticides make a circle of poison, residue of some banned/approved chemicals exported to other countries can return to the exporting countries on imported food. According to a study, only 0.1-0.2% of insecticides applied to crop by aerial or ground spraying reaches the target pests and can undergo bioaccumulation and bio-magnification. The wind can also carry persistent organic pesticide such as DDT from one country to another. In 2000, more than hundred countries reached an international agreement to ban or phase out the use of twelve specially hazardous persistent organic pollutants (POPs), and nine of them were persistent
hydrocarbon pesticide such as DDT and other chemically similar pesticides.
Given below are two statements
Statement I: No use or reduced use of synthetic chemical pesticides is likely to reduce the crop yield as compared to their use.
Statement II: Alternative pest management practices are likely to improve crop yield.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:96

The following table presents data about the number of men, women and children and percentage (9%) of overweight men, overweight women and overweight children in a city during the last six years from 2016 to 2021.

Year-wise Distribution of Population in a city

What was the average of the number of men, women and chlidren who were overweight in the year 2019?

QUESTION ID:97

The following table presents data about the number of men, women and children and percentage (%) of overweight men, overweight women and overweight children in a city during the last six years from 2016 to 2021.

Year-wise Distribution of Population in a city

The number of overweight men in the year 2021 was what percent of the number of men who were not overweight in the same year?

QUESTION ID:98

The following table presents data about the number of men, women and children and percentage (96) of overweight men, overweight women and overweight children in a city during the last six years from 2016 to 2021.

Year-wise Distribution of Population in a city

What was the ratio of the number of overweight women in the year 2018 to the number of overweight men in the year 2020?

QUESTION ID:99

The following table presents data about the number of men, women and children and percentage (9%) of overweight men, overweight women and overweight children in a city during the last six years from 2016 to 2021.
Year-wise Distribution of Population in a city
What was the difference between the number of overweight women and overweight children together in the year 2018 and the number of overweight men in the same year?

QUESTION ID:100

The following table presents data about the number of men, women and children and percentage (9%) of overweight men, overweight women and overweight children in a city during the last six years from 2016 to 2021.
Year-wise Distribution of Population in a city
What was the total number of children who were not overweight in the year 2016 and 2017 together?

QUESTION ID:101

Which of the following is NOT characteristic of a good question paper?

QUESTION ID:102

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason
R
Assertion A: MOOCs on the SWAYAM portal can be used for earning upto 40% credits per semester by students.
Reason R: All MOOCs on the SWAYAM portal are credit-based MOOCs.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:103

Dynamic approach to teaching means

QUESTION ID:104

Choose the correct answer from the options given below

QUESTION ID:105

Historical research has the limitation of

QUESTION ID:106

The term 'Hermeneutics' is drawn from

QUESTION ID:107

Which of the following have been considered as threat to internal validity in research?
Randomisation
Generalisability
Maturation
History
Instrumentation
Choose the correct answer from the options given below:

QUESTION ID:108

Given below are two statements
Statement I: The qualitative data are powerful because they are collected from very sensitive social, historical and temporal context.
Statement II: Context sensitivity cannot be completely removed from the qualitative data.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:109

Choose the correct answer from the options given below:

QUESTION ID:110

In face-to-face communication, the non-verbal cues provided by the receiver, can be considered as

QUESTION ID:111

Communication compatibility between individuals is rooted in

QUESTION ID:112

Which of the following are the advantages of grapevine communication
Smooth float of adverse comments
Knowing the morale in the organisation
Spead of propagandist views
To know the important issues faced by the employees
Assessment of employee anxities
Choose the correct answer from the options given below:

QUESTION ID:113

Given below are two statements
Statement I: The new system of communication has facilitated the emergence of an interactive society.
Statement II: The new system of communication is digital and has integrated multiple modes of communication through networks.
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:114

Find the missing number in the series:
2, 10, 30, 68, 130, 222, 7

QUESTION ID:115

Certain number of birds are sitting on two trees A and B. Birds sitting on tree A, tell to the birds sitting on tree B, that if 2 birds from tree B shift to the tree A, then we are equal in number. However, the birds sitting on tree B, tell those sitting on A, that if two birds from your side (tree A) shift to our side (tree B), then we become double than you (tree A). How many birds are sitting on the two trees A and B, respectively?

QUESTION ID:116

If the statement, 'Some plants are not carnivorous' is given as false, then which of the following could be immediately inferred from it?
A. 'Some plants are carnivorous' is true
B. 'Some plants are carnivorous' is false
C. 'No plants are carnivorous' is false
D. 'All plants are carnivorous' is true
Choose the correct answer from the options given below:
B, C and D only
A and D only
A and C only
A, C and D only

QUESTION ID:117

A wise sage has said, "The hunger for knowledge is more difficult to remove than the hunger for food. Therefore, one should stick to the food." Which fallacy is committed in this argument?

QUESTION ID:118

We should value the Moon more than the Sun because the Moon shines when it is dark whereas the Sun shines when there is light anyway." This statement commits the fallacy of

QUESTION ID:119

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason
R
Assertion A: According to classical Indian Logicians (Naiyayikas), all fallacies are material fallacies.
Reason R: According to Nyaya, Syllogism is deductive-inductive and formal-material.
In light of the above statements, choose the correct answer from the options given below
Both A and R are true and R is the correct explanation of A
Both A and R are true but R is NOT the correct explanation of A
A is true but R is false
A is false but R is true

QUESTION ID:120

Which of the following statements are true regarding Nyaya (Classical Indian School of Logic) view of hetrabhasa (fallacy)
A. It means that middle term appears to be a reason but is not a valid reason.
B. All fallacies are material fallacies.
C. When an inference is based not on causation but on uniformity of co-existence, it leads to a fallacy.
D. Fallacies occur when any of the five characteristics of a middlle term are violated.
Choose the correct answer from the options given below:

QUESTION ID:121

Which of the following is not an essential component required for video-conferencing system?

QUESTION ID:122

Which of the following is NOT correct regarding Digilocker, a key initiative under 'Digital India' programme of Government of India?

QUESTION ID:123

Many computer users are worried about malware. Which of the following are two examples of malware?
Firewall
Worm
Router
Virus
Choose the correct answer from the options given below:

QUESTION ID:124

If the formula = $A$3+ B2 in cell C4 is copied to cell C5, then what is the value in cell C5? 1.9

QUESTION ID:125

Which of the following are the principal components of the CPU of a computer system?
ALU (Arithmetic-Logic Unit)
CU (Control Unit)
Processor Registers
SSD (Solid-State Drive)
VRAM (Video RAM)
Choose the correct answer from the options given below:

QUESTION ID:126

Which among the following pesticides would have the least chance of bioaccumulation in food chains?

QUESTION ID:127

Which of the following is envisaged in the Sustainable Deveopment Goals?

QUESTION ID:128

Which among the following hazards can occur due to anthropogenic causes?
Cyclones
Nuclear Disaster
Floods
Volcanoes
Forest Fires
Choose the correct answer from the options given below:

QUESTION ID:129

Arrange the following water bodies in increasing order of the quantity of freshwater they hold:
Ice and snow
Freshwater lakes and reservoirs
Groundwater
Rivers and streams
Choose the correct answer from the options given below

QUESTION ID:130

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Most cyclones cause widespread damage in coastal areas.
Reason R: Energy of most cyclones increases after landfall.
In light of the above statements, choose the most appropriate answer from the options given below

QUESTION ID:131

Which of the following statements are true regarding Nyaya (Classical Indian School of Logic) vi of hetrabhasa (fallacy)
It means that middle term appears to be a reason but is not a valid reason.
All fallacies are material fallacies.
When an inference is based not on causation but on uniformity of co-existence, it leads to fallacy.
 Fallacies occur when any of the five characteristics of a middlle term are violated.
Choose the correct answer from the options given below:

QUESTION ID:132

Some of the most notable universities that evolved during ancient period in India were situated at:
Takshashila
Vikramshila
Jagaddala
Odantapuri
Nalanda
Choose the correct answer from the options given below:

QUESTION ID:133

In pursuance of the National Council of Teacher Education Act,1993, NCTE was established in the
year

QUESTION ID:134

SWAYAM tries to take the best teaching-learning resources to all students through

QUESTION ID:135

Following are the characteristics of Non-Conventional learning:
It is teacher oriented.
It is for improvement of quality...
It is cost effective.
It is linked to employment.
It is on campus.
Choose the correct answer from the options given below:

QUESTION ID:136

Given below are two statements
Statement I: An ethical framework of sustainable deveopment provides normative guidance regarding our relationship with environment.
Statement II: Anthropocentric model is misleading as evident from its environmental
consequences,
In light of the above statements, choose the correct answer from the options given below

QUESTION ID:137

Read the given passage and answer the questions that follow
Marie Curie was a Polish-born physicist and chemist and one of the most famous scientists of her time. Together with her husband, Pierre, she discovered radium, an element widely used for treating cancer, and studied uranium and other radioactive substances. Pierre and Marie's amicable collaboration later helped to unlock the secrets of the atom. Together with her husband Pierre, she was awarded the Noble Prize for Physics in 1903.
Marie was born in Warsaw, Poland on 7 November 1867, the daughter of a Physics teacher. At an early age, she displayed a brilliant mind and a blithe personality. Her great exuberance for learning prompted her to continue with her studies after high school. She became disgruntled, however, when she learned that the university in Warsaw was closed to women. Determined to receive a higher education, she defiantly left Poland and in 1891 entered the Sorbonne, a French University, where she earned her master's degree and doctorate in Physics.
Marie was fortunate to have studied at the Sorbonne with some of the greatest scientists of her day, one of whom was Pierre Curie. Marie and Pierre were married in 1895 and spent many productive years working together in the physics laboratory. A short time after they discovered radium, Pierre was killed by a horse-drawn wagon in 1906. Marie was stunned by the horrible misfortune and they had shared in scientific research. The fact that that she had two young daughters to raise by herself greatly increased her distress. Curie's feeling of desolation finally began to fade when she was asked to succeed her husband as a Physics professor at the Sorbonne. She was the first woman to be given a professorship at the world- famous university. She received her second Noble Prize in Chemist for isolating radium, in 1911. Curie eldest daughter, Irene, was herself a scientist and winner of the Noble Prize for Chemistry.
Although Marie Curie eventually suffered a fatal illness from her long term exposure to radium, she never became disillusioned about her work. Regardless of the consequences, she had dedicated herself to science and to revealing the mysteries of the physical world. 
At what age did Marie Curie receive her first Nobel prize?

QUESTION ID:138

Read the given passage and answer the questions that follow
Marie Curie was a Polish-born physicist and chemist and one of the most famous scientists of her time. Together with her husband, Pierre, she discovered radium, an element widely used for treating cancer, and studied uranium and other radioactive substances. Pierre and Marie's amicable collaboration later helped to unlock the secrets of the atom. Together with her husband Pierre, she was awarded the Noble Prize for Physics in 1903.
Marie was born in Warsaw, Poland on 7 November 1867, the daughter of a Physics teacher. At an early age, she displayed a brilliant mind and a blithe personality. Her great exuberance for learning prompted her to continue with her studies after high school. She became disgruntled, however, when she learned that the university in Warsaw was closed to women. Determined to receive a higher education, she defiantly left Poland and in 1891 entered the Sorbonne, a French University, where she earned her master's degree and doctorate in Physics.
Marie was fortunate to have studied at the Sorbonne with some of the greatest scientists of her day, one of whom was Pierre Curie. Marie and Pierre were married in 1895 and spent many productive years working together in the physics laboratory. A short time after they discovered radium, Pierre was killed by a horse-drawn wagon in 1906. Marie was stunned by the horrible misfortune and endured heartbreaking anguish. Despondently, she recalled their close relationship and the joy that they had shared in scientific research. The fact that that she had two young daughters to raise by herself greatly increased her distress.
Curie's feeling of desolation finally began to fade when she was asked to succeed her husband as a Physics professor at the Sorbonne. She was the first woman to be given a professorship at the world- famous university. She received her second Noble Prize in Chemist for isolating radium, in 1911. Curie eldest daughter, Irene, was herself a scientist and winner of the Noble Prize for Chemistry.
Although Marie Curie eventually suffered a fatal illness from her long term exposure to radium, she never became disillusioned about her work. Regardless of the consequences, she had dedicated herself to science and to revealing the mysteries of the physical world.
After how many years of her marriage did Marie Curie lose her husband?

QUESTION ID:139

Read the given passage and answer the questions that follow
Marie Curie was a Polish-born physicist and chemist and one of the most famous scientists of her time. Together with her husband, Pierre, she discovered radium, an element widely used for treating cancer, and studied uranium and other radioactive substances. Pierre and Marie's amicable collaboration later helped to unlock the secrets of the atom. Together with her husband Pierre, she was awarded the Noble Prize for Physics in 1903.
Marie was born in Warsaw, Poland on 7 November 1867, the daughter of a Physics teacher. At an early age, she displayed a brilliant mind and a blithe personality. Her great exuberance for learning prompted her to continue with her studies after high school. She became disgruntled, however, when she learned that the university in Warsaw was closed to women. Determined to receive a higher education, she defiantly left Poland and in 1891 entered the Sorbonne, a French University, where she earned her master's degree and doctorate in Physics.
Marie was fortunate to have studied at the Sorbonne with some of the greatest scientists of her day, one of whom was Pierre Curie. Marie and Pierre were married in 1895 and spent many productive years working together in the physics laboratory. A short time after they discovered radium, Pierre was killed by a horse-drawn wagon in 1906. Marie was stunned by the horrible misfortune and endured heartbreaking anguish. Despondently, she recalled their close relationship and the joy that they had shared in scientific research. The fact that that she had two young daughters to raise by herself greatly increased her distress.
Curie's feeling of desolation finally began to fade when she was asked to succeed her husband as a Physics professor at the Sorbonne. She was the first woman to be given a professorship at the world- famous university. She received her second Noble Prize in Chemist for isolating radium, in 1911. Curie eldest daughter, Irene, was herself a scientist and winner of the Noble Prize for Chemistry.
Although Marie Curie eventually suffered a fatal illness from her long term exposure to radium, she never became disillusioned about her work. Regardless of the consequences, she had dedicated herself to science and to revealing the mysteries of the physical world.
What made Marie Curie study at Sorbonne University?

QUESTION ID:140

Read the given passage and answer the questions that follow
Marie Curie was a Polish-born physicist and chemist and one of the most famous scientists of her time. Together with her husband, Pierre, she discovered radium, an element widely used for treating cancer, and studied uranium and other radioactive substances. Pierre and Marie's amicable collaboration later helped to unlock the secrets of the atom. Together with her husband Pierre, she was awarded the Noble Prize for Physics in 1903.
Marie was born in Warsaw, Poland on 7 November 1867, the daughter of a Physics teacher. At an early age, she displayed a brilliant mind and a blithe personality. Her great exuberance for learning prompted her to continue with her studies after high school. She became disgruntled, however, when she learned that the university in Warsaw was closed to women. Determined to receive a higher education, she defiantly left Poland and in 1891 entered the Sorbonne, a French University, where she earned her master's degree and doctorate in Physics.
Marie was fortunate to have studied at the Sorbonne with some of the greatest scientists of her day, one of whom was Pierre Curie. Marie and Pierre were married in 1895 and spent many productive years working together in the physics laboratory. A short time after they discovered radium, Pierre was killed by a horse-drawn wagon in 1906. Marie was stunned by the horrible misfortune and endured heartbreaking anguish. Despondently, she recalled their close relationship and the joy that they had shared in scientific research. The fact that that she had two young daughters to raise by herself greatly increased her distress.
Curie's feeling of desolation finally began to fade when she was asked to succeed her husband as a Physics professor at the Sorbonne. She was the first woman to be given a professorship at the world- famous university. She received her second Noble Prize in Chemist for isolating radium, in 1911. Curie eldest daughter, Irene, was herself a scientist and winner of the Noble Prize for Chemistry.
Although Marie Curie eventually suffered a fatal illness from her long term exposure to radium, she never became disillusioned about her work. Regardless of the consequences, she had dedicated herself to science and to revealing the mysteries of the physical world.
Which of the following elements is widely used in treatment of Cancer?

QUESTION ID:141

Marie Curie was a Polish-born physicist and chemist and one of the most famous scientists of her time. Together with her husband, Pierre, she discovered radium, an element widely used for treating cancer, and studied uranium and other radioactive substances. Pierre and Marie's amicable collaboration later helped to unlock the secrets of the atom. Together with her husband Pierre, she was awarded the Noble Prize for Physics in 1903.
Marie was born in Warsaw, Poland on 7 November 1867, the daughter of a Physics teacher. At an early age, she displayed a brilliant mind and a blithe personality. Her great exuberance for learning prompted her to continue with her studies after high school. She became disgruntled, however, when she learned that the university in Warsaw was closed to women. Determined to receive a higher education, she defiantly left Poland and in 1891 entered the Sorbonne, a French University, where she earned her master's degree and doctorate in Physics.
Marie was fortunate to have studied at the Sorbonne with some of the greatest scientists of her day, one of whom was Pierre Curie. Marie and Pierre were married in 1895 and spent many productive years working together in the physics laboratory. A short time after they discovered radium, Pierre was killed by a horse-drawn wagon in 1906. Marie was stunned by the horrible misfortune and endured heartbreaking anguish. Despondently, she recalled their close relationship and the joy that they had shared in scientific research. The fact that that she had two young daughters to raise by herself greatly increased her distress.
Curie's feeling of desolation finally began to fade when she was asked to succeed her husband as a Physics professor at the Sorbonne. She was the first woman to be given a professorship at the world- famous university. She received her second Noble Prize in Chemist for isolating radium, in 1911. Curie eldest daughter, Irene, was herself a scientist and winner of the Noble Prize for Chemistry.
Although Marie Curie eventually suffered a fatal illness from her long term exposure to radium, she never became disillusioned about her work. Regardless of the consequences, she had dedicated herself to science and to revealing the mysteries of the physical world.
The passage shows Marie Curie to be a great scientist who