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Previous Year Questions

TLS Online TPP Program

QUESTION ID:1

As per the  cognitive development theory of Jean Piaget, adolescent students are in which stage of development'?

QUESTION ID:2

Below is given a .list of teaching methods and approaches. Which among them are· individualized  approach ?
Below is given a .list of teaching methods and approaches. Which among them are individualized approach 
A. Demonstration method
B.Modular approach based teaching 
C.Programmed learning 
D.Personalized teaching 
E.Collaborative method
Select your answer .from the options given below

QUESTION ID:3

Which of the following statements is true in th:e,cttseof.a test prepared by you as a teacher

QUESTION ID:4

Which of the following statements best explains the  concept of team  teaching?

QUESTION ID:5

Which among the following bases can be counted tb judge  the effectiveness  of teaching

(a) Marks obtained by studentsin overail subjects

(b) Level of realization :.of instructional objectives

(c) Time taken by the Students to learn 

(d) Resources used by thete&cher in teaching 

(e) Regularity of students in class.

Select your answer, from the options given below :

QUESTION ID:6

When. the researcher· does not know the identity otthe: experi·merital and placebo groups, the study is.termed as

QUESTION ID:7

Research that focuses  on  socail .in equality between men. and women is called

QUESTION ID:8

The easiest attitudihal seale which,is a summated rating scale is the

QUESTION ID:9

Quantitative research is also called the

QUESTION ID:10

In the research method, generalisations may be made. that will be applicable to other siiuations·ofthe same type; What is this called?

QUESTION ID:11

When a student stands first in the class, the general credit is given to

QUESTION ID:12

Those who undstand. a problem in a short  span of time will be people with 

QUESTION ID:13

Dissatisfaction is often witnessed in people  with

QUESTION ID:14

Another word for weightage  is

QUESTION ID:15

The cognitive·.domain of communication involves matters related to

QUESTION ID:16

in  a class room a  student to be an effective listener  has  to take note of

The Teacher appearance

The peer group

The academic content

Comnunication distractions

Choose the correct answer from 'the options given below

QUESTION ID:17

Since most.inter actioris  With other people take place at a highly  superfical  level, making good · becomes difficult .

QUESTION ID:18

In both mass communication and. classroom communication, filtering of information and contents is refened to as

QUESTION ID:19

Assertion (A) : No enculturisation·takes :place with  resistance Reason (R} People have the ir own values and self interest  that filtercommunicated messages
Choose the. correct answer from the options given below

QUESTION ID:20

if  n a  certain code; BAT = 23 ·and CAT = 24, then how you will -code BALL?

QUESTION ID:21

The product of two numbers a .and b is twice the sum of the. numbers. What is fhe sum: of  the reciprocals of a and b

QUESTION ID:22

A group of40 employees of Cadre A has a mean age of 31. A diffferent group:of60'·employees  of Cadre B has: a mean age of28. What is ·the-mean ag~ of. two employees, of:the two group  together?

QUESTION ID:23

An aeroplane .flies along the four sides o( a: squar.e field at the spee d of 400,. 600, 800 and 200 km/hr. Find the .average speed of:the :plane around the field

QUESTION ID:24

A retailer. marks all .his goods at 40% above the. cost price and thinking that he will still make 20% profit, offers a discount of 20% on the. marked  price. Wha t is his actual  profit percentage on the sales?

QUESTION ID:25

All gentlemen are polite
No crirriinals are polite
No criminals are  gentlemen.
Identify the· major term in above syllogism

QUESTION ID:26

Identify  the argument under which .instantial propositions are inferi·able from Uriiversal Proposition?

QUESTION ID:27

Bangalore is· bigger than Jhansi Satpura is bigger than Chittor, Rajgarh is:not as  big as Jhansi but is bigger than Satpura. Which is the smallest ?

QUESTION ID:28

A perception where we do not have· the knowledge of an object chai·acterized by any predicate but an apprehension of some unrelated elements is called as

QUESTION ID:29

Consider the gument provided below.:  Sound is  imnpermaneht because.it is audible'' Ideiitify  the fallacy'involved ih the above argument on the basis of'Iridian Logic from the option given below :

QUESTION ID:30

Consider the following table that shows the total number of·students and percentage of females and males in five. different departments. Answer the questions based ·on .the data contained in  the table 


QUESTION ID:31

What is. the total number  of females· in English and :Hindi departments together

QUESTION ID:32

What is  the  respective ratio of the number of male students in English Department· to ·the number  of male-students in Mathematics department.?

QUESTION ID:33

Vvhich of the departments has maximum number of female students?

QUESTION ID:34

The total number  of students in the Chemistry department forms approximately. what percent of the total number·of student in the mathaties department?

QUESTION ID:35

Which of the  department has minimum number  of male students?

QUESTION ID:36

The main two components of CPU are-------

QUESTION ID:37

Which of the followrrig is used t.o create web pages?

QUESTION ID:38

Which of'the following is a search Engine?'

QUESTION ID:39

Joint Photographic Expert  Group (JPEG) is used to compress 

QUESTION ID:40

The use of information Technology (IT) to improve the ability of Government to address the needs of society is known as

QUESTION ID:41

Which  of  the following pollutants is included in the Air Quality Index  in  India?

QUESTION ID:42

The initiative to establish International Solar Alliance was jointly taken by

QUESTION ID:43

Which ofthe following is are missions under the national action plan on climate change?

(A)Sustailling the·!funalayan .ecosyStem

(b) Sustainable forest management.

(c) Strategic Knowledge for  climate change

Select the correct answer :

QUESTION ID:44

Which  of the following  is a biological method of disposal of Municipal Solid Waste?

QUESTION ID:45

Blue baby syndrome can happen due to excess ofwhich component in water-?

QUESTION ID:46

The medium of instruction in the vedic system of education has been

QUESTION ID:47

The methods of learning in Higher Education in India in the past consisted of

Memorization Brain Storming procedure and Seminar 

Memorization  Critical  Analysis and  Story telling 

Critical Analysis, Assigirment'Writing and Oral r·eports

Story Telling  Brain storming procedure and Seminar

QUESTION ID:48

Name the scheme which aims to create research ambience  in the institutes  by promoting research in engineering sciences.
E - Shooth Sindhu
Entrepreneurship Development Cell
Research Promotion Schemes (RPS)
Institution  Development Scheme

QUESTION ID:49

inspire scholarship' is intended by the  funding agency'---------

QUESTION ID:50

National Curriculum Framework was developed by which of the following.?

QUESTION ID:51

Given below are two statements one labelled as Assertion A and the other labelled as  Reason (R).
Assertion (A) : Strategic Envirorun:ental Assessment (SEA.) is a more advanced tool in environmental management .
Reason (R} . SEA is applicable at the level of policy, planning and progrmmes
Choose the correct answer from· the options given below :

QUESTION ID:52

Atmospheric Scale Height (H) is the height over which deoreases by a factor of

QUESTION ID:53

A 100 mL sample of (paper industry effluent is digested in acidified  dichromate solution and by back titration it  is found that 5xl0-4 mol of dichromate has been.consumed in
chemical oxidation. What is COD' (mg02L of the sample?

QUESTION ID:54

Acid mine drainage from underground mines occurs as

QUESTION ID:55

Predators and parasites are similar  in that; both can be characterised by

QUESTION ID:56

Which one among the. following do all the terrestrial biomes·have in.common?

QUESTION ID:57

Which of the following modes of energy generation has maximum  conversion efficiency?

QUESTION ID:58

Spring tides occur

QUESTION ID:59

What is the required solar panel area for photovoltaic cells 'with efficiency of 20% and incident solar radiation. of 400 W/m2 to-run ail electric geyserof2 kW?

QUESTION ID:60

A windmill has to 10-m diameter and. efficiency of 40%.. Wind velocity at normal temperature ahd pressure is 10 m/s  and the density  of air is  1.29  kg/m 3 The expected  power output frotn the,windmill is

QUESTION ID:61

An ozone  analyser shows 100 ppb concentration at  1 atmosphere Ot atm and  25 °C Convert the. observed concentration of ozone in ug/m3

QUESTION ID:62

Match List-I(Gases) with List-II (MeasurementTechniques

  

Choose the correct answer from the options given below

QUESTION ID:63

Given. below are two statements, one is labelled as Assertion (A) and the other as
Reason(R) .
ASseition (A) RefuSe derived ftrel ·from municipal ·solid waste has higher energy content than raw municipal solid. waste,
Reason (R) Combustible organic material gets concentrated in fuel pellets produqed from municipal solid waste.
Choose the correct answer from the options given below

QUESTION ID:64

Consider a normal distribution f(x)of:variable x. what percentage ·of variable values deviate frortl the mean by more   than  

QUESTION ID:65

If x and y are  two variables with independent frequency distributions with means  and variances  of their difference  and then the population variances  of their difference is

QUESTION ID:66

Given be low  are two statements one labelled as Ass.ertion (A) and the other as 
Reason .(R).
Assertion (A) Reason.(R)
Sounds with a frequency <1 0'0 Hz{base notes) need to be of a higher energy before damage to. ear occurs 
Human ear has variable frequency response 
Choose the correct  answer from the options given below

QUESTION ID:67

Landslide incidences in the Himala.yashave increased due to:

(a) Increased rainfall

(b) Deforestation

{c) Construction of new roads

Choose the correct  option

QUESTION ID:68

Hardness of minerals depends on

QUESTION ID:69

Match List-1 (Taxa) with List-11 (Taxa PropertY)

                                                            

Choose the correct answer from options given below :


QUESTION ID:70

Which  is the correct hierarchical level of orgatrisation in ecology?

QUESTION ID:71

The largest unit in which gene flow is possible is

QUESTION ID:72

Mycorrhizae enhance plant nutrition mainly by

QUESTION ID:73

Given below are· two statements. One labelled as Assertion {A) ·and the otherlabelled as
Reason (R). ·
Assertion (A)
Reason(R)
The  occurrence  of acid rain over the Indian landmass is extremely rare.
The alkaline dust and ammonia (NH3) produced .from agricultw:al mareas neutralise the acid formatiort in the atmosphere.
Choose the correct answer from the options ·given below.

QUESTION ID:74

Match List-I (Enviormentel).thl Pollutant) with List-II (Instruments  Used for Analysis)

                        

Choose  the correct answer from the options given below

QUESTION ID:75

Given below are two statements, one labelled as Assertion (A) and the other labelled as
Reasoil(R}
Asertion.(A) : If BOD ievel of water in a reservoir  less than 5 mgL  it is
highly polluted.
Reason .(R) High BOD means  high microbial activity.
Choose· the correct answerfrom the options-given.below.

QUESTION ID:76

Which among the following CAN .NOT be categorized as VOCs?

Polycyclic Aromatic Hydrocarbons

Halocarbons

Non-methane Hylrocarbons

Oxygenates


QUESTION ID:77

Glven below are two statements, one labelled ·as Assertion  (A) and the other·labelled as 
Reason (R).
Assertion (A) CarbondioXide content in soil ait is more than atmospheric air.
Reason (R) ·Carbo:n dioxide released from .automobile exhaust an.d industries gets sequestered in the soil
Choose. the correct answer from the options given below.

QUESTION ID:78

Fulvic acid molecules  in·soil hmnus are

(a) Randomly coiled

(b) More polar

(6) Hi~hly-charged

(d) Smaller molecules than humic acrd molecules

Choose the correct option

QUESTION ID:79

Wind rose reveals

(a) Percentage of times wil:tds. ~rsistin aspecinc direction

(b) M{5st probable di'rection of winds

(¢) Percentage duration for which Wind speeds are in a· given range

(d) Wind energy potential

Select the correct answer from the options given below

QUESTION ID:80

Spectral response pattern of leaves  in  healthy vegetation in SWIR region of EMR is primarily a function of
1.Chlorophyll centent
2. Leaf parenchyma
3. ·water content of the leaf
4. Presence· of waxy layer on epidermis

QUESTION ID:81

Which Forest type has the highest percentage cover in the country?

QUESTION ID:82

Saturatiort vapour pressme  at  given temperature is 900 mbar while it is 600 mbar at dew point temperature. What will be the relative humidity?

QUESTION ID:83

Major attributes of a restored ecosystem are :

(a) Representation of all functional groups 

(b) Amelioration of physical env1rorunent

(c) Resilience and integrity

{d) Absence of-potential threats

Choose the correct option 

QUESTION ID:84

Given below are two statements, one is labelled as Assertion (A) and .the other as
Reason R 
Assertion (A) : Biogas production is reducedin winters 
Reason  (R) .Methanogeneoccurs .at tn~sophilio ·temperatures.
Choose the correct answer from the,options·given.below.

QUESTION ID:85

Arrange the following biomes in the increasing order of primary productivity (answer is not correct)

(a) Savatinah

(b) Boreal forests

(c) Temperat~ forests

(d) Temperate· grasslands

Choose the correct option;

QUESTION ID:86

what percent of visible radiation account  for total solar. radiation incident on top of atmosphere?

QUESTION ID:87

Ozone depleting potential is measured  with reference to

QUESTION ID:88

According to National Ambient Air Quality Standards (NAAQS) annual average conceRttation (p.glm3} for S02· and NO2.ecologically sensitive areas are 
1. 20 and 60 respectively
2.80 and 47"respectively
3.50 and 20-respectively
4.20 and 30 respectively

QUESTION ID:89

Which toxic metal is present in the colour printing inks of magazine pages?

QUESTION ID:90

Which is an exotic epigeic earthworm used widely for vermicomposting in India?'

1. Perionyx excavatus

.2. Eudrilus eugeniae

3. Drawida· willsi

4. Lampito·mauritii

QUESTION ID:91

Greenhouse gas ·C02 has very strong absotption band in the wavelength region


   

    

     

QUESTION ID:92

Match List I (NGO Mevements) with List-II (Years of Struggle)

             

Choose the· correct answer ·fronrthe opt;ions. given below


QUESTION ID:93

In order of intensity of different components of electromagnetic radiation emitted from sun reaching earths surface, identify the correct sequence :
1.ultraviolet > visible  > infrared
2. Ultraviolet < visible < infrared 
3. ultraviolet > infrared > visible
4. ultraviolet < infrared > visible

QUESTION ID:94

Ground truth data in remote sensing· is collected for :

(a). Analysis .of remote. sensing .data

(b) .Accuracy .assessment

(c) Calibration of remote sensing sensors

Choose the correct option:

QUESTION ID:95

A lake has 2 ·5 mgl of dissolved organic carbon. The. dissolved organic matter concentration in the lake is approximately·
6·25 mgL-1
4·25mgL -1
3.25 ·mgL-1
2.75 mgL  -1

QUESTION ID:96

Moderate disturbance in an ecosystem
1. Increases biodiversity·
2. Decreases  biodiversity·
3. Has· no effect on biodiversity
4. Increases carrying  capacity

QUESTION ID:97

Removal of decomposers from an ecosystem will lead to

1. Increase in number of 

2. Reduction in nutrient cycling

3. Increased· number of carnivores

4. Decreased number of carnivores


QUESTION ID:98

What type of rock will  be when the lava cools and crystallizes?

1. Intrusive. igneous

2. Extrusive igneous.

3. Metamorphic 

4. Sedimentary

QUESTION ID:99

Which of the· following parameters  provides information on ignition quality of diesel?

1. Octane number

2. Cetarte ntlrtiber

3. Iodine value

4. Acid value.

QUESTION ID:100

Given below are two statements one labelled as Assertion (A) and the other labelled as
Reason(R).
Asertion (A) Hydroxides of  Alurninium (III) .or Iron (III) are quite effective in 
removing colloidal clay particles from turbid water.
Reason (R) · Hydroxides :from positively .charged floes attract and carry down
negatively charged colloidal clay particles.
Choose the  correct answer from the options given below 

QUESTION ID:101

Which energy conversion process,is involved in syngas production from biomass?

QUESTION ID:102

Electrostatic precipitator (ESP} is good for controlling

1. VbCS

2. Green house  gases

3. Fine particUlate· matter

4. SUlphur compounds

QUESTION ID:103

Which method is most appropriate for separating tin cans from aluminium cans in municipal .solid waste ?
1.Shear shredding
2. Manual sorting
3. Pelletizing
4. Magnetic field  separation

QUESTION ID:104

Fire occurrence  in the forests depends on 

(a) Fuelload

{b) Veg tatiorttype

(c) Distance  frorn the habitations

Choose the correct option


QUESTION ID:105

Which of the following biomes has the largest area?

1. Grassland

2. Desert

3. Taiga

4. Rainforest

QUESTION ID:106

Match  List-.1 (ISO StandardS) with List--II (Envirorunental ·Management Aspects :

                        

Choose the correct answer from the options given below :


QUESTION ID:107

Which is the  first mineral to from 'in cooling magma?

1.Olivine

2. Quartz

3. Mica

4. Potassiurn feldspar


QUESTION ID:108

Which instrument  is used to measure total irradiance?

1.. Pyrheliometer

2. Anemometer

3. Pyranorneter.

4. Hygrometer


QUESTION ID:109

Which of the following is primary air pollutant?

1. Surface Ozone 

2. Sulphate

3. Nitrate

4. Black carbon


QUESTION ID:110

Which type of earthworms are most suitable for vermieomposting? 

1. Anecic

2. Epigeic

3. Endogeic

4. Both endogeic and epigeic


QUESTION ID:111

Remote sensing data from which of the following remote sensing satellites is most suitable fot urbart ecological studies?
1. RISAT-2
2. CARTQ'SAT-2
3. LANDSAT-8 
4. RESOURCESAT-2 Wifs

QUESTION ID:112

Cartagena Protocol deals with

1.Waste niailageineht

2 .Pr.otection of plantvafiety

3.Natural r~source ·management

4. Biosafety


QUESTION ID:113

First State to ma ke rainwater  harvesting compulsory in. India is 

1. Haryana

2. Tamilnadu

3, Gujarat

4. Madhya Pradesh

QUESTION ID:114

For a H2  + H3 fusion reaction if the desited confinement for the ionized fuel is 2. seconds  what must be the minimum concentration of ions per cubic meter for net gain
of energy? 

QUESTION ID:115

As per the amended rules for the implementation of forest Rights Act of 200.6, the transit passes for .the transport of minor forest produce are issued by

QUESTION ID:116

Municipal Solid Waste·(Management and  Handling) Rules 2000 were replaced ·by

QUESTION ID:117

As per Occupational Safety and Health Administration hazard communication pictogram of flame over circle represents the hazardous waste to be an

QUESTION ID:118

UNEP awarded ·Champion ofEarth' for the year 2018 for environmental  contribution towards
(a) Air pollution abatement
(b) Beating,plasti'e pollution
(c) Establishing International Solar Alliance
(d) Swachh  Bharat Abhiyan
Choose the correct answer from the options given below :

QUESTION ID:119

Given.below are two statements. One labelledasAssertion(A) and the other labelled as
Reason (R).
Assertion (A) : The power ·output ftom a windmill is maximum for an optimal
wind speed. 
Reason(R) The turbulence· in the atmosphere influences wind energy ·production.
Choose the correct  answer from the options given below.

QUESTION ID:120

An aeroplane causes .a sound of level 110 dB on.taking off. What is the sound level of 5 such.Identical aeroplanes taking off simultaneously?

QUESTION ID:121

A thennal power plant emits S02 at the rate of 500× 108 ug/s Its stack has an effective height of 200 m where wind speed is 5.0 m/s. If the horizontal and vertical dispersion coefficients are 400m and 200 m, respectively, the downwind ground level concentration of S02at a distance of 2 km will be Answer is not confirm

QUESTION ID:122

In an ideal magnetoaydrodynamic (MHD) generator the. velocity of fuel gas is  increased by· a factor of 1.5  and the magnetic field is increased by a factor of 2. By what factor, the maximum power  produced from the MHD generator would increase ?

QUESTION ID:123

A stream  of waste  water having BOD of 20·0 mg/L discharge water at the rate 1·0 m~/s into river with flow rate 8:•.0 m3/s·and BOD of 5·.0 mg/L. Assuming·complete and instantaneous mixing) what is· the resultant BOO just downstream from. the point of discharge?

QUESTION ID:124

A country  has population of350 million and an annual  growth rate of population.2·0% at t= 0. There after the population stab11izes at 1··4 billion How long-it will take for the population

QUESTION ID:125

Match List-I (Ozone· Depleting Substances) with List-il (Chemical Formulas) :

List-I (Ozone Depleting Substances                              List- ii  (Chemical Formulas

CFC-12                                                                               CF2C1CFC12

CFC-113                                                                             CCIF2CF3

CFC-114                                                                              CF2Cl2

CFC-115                                                                              CF2CICF2C1

Choose the correct answer from the options given below: 

QUESTION ID:126

Given-below are two statements One labelled as Assertion.(A) and the other labelled 
Reason (R)
Assertion (A) ·The Organic,matter helps in formation and stabilization of soil texture.
Reason (R) · Humified organic matter has an affinity for water and can absorb and
hold water upto several times of its dry weight.
Choose the correct  answer from the options given below.

QUESTION ID:127

Match  List-I(Soil Type) with List-II (Degree  of Compressibility):

List-I (Soil Type)                         List- ii

Softy Clay                                   Low

Clay                                            High

Silt                                              Medium

Sandy Clay                               Very High

Choose the correct answer from the options given below.

QUESTION ID:128

A container has 3 white balls and  2 black balls identical' in size. Two balls are drawn randomly  without replacement The probability that· the· two baits are of different colours is

QUESTION ID:129

If s² is the variance of a sample of size N drawn from a normal population with variance   Ns2 then has which one of the following distributions with (N-1) degrees of
freedom?

QUESTION ID:130

Simultaneous measurement of humidity Y (%) and temperature X  at a given site are given as under: 
Y: 30 X: 40 45  60  65
X:  40    35  30  25  20
The correlation coefficient between Y and X is 

QUESTION ID:131

The marks of students in a certain course· averaged 75 over a period of years. A class of  50 students has a mean  marks 70 With a standatd deviation of 10  To test whether this  lower mean can be attributed to ordinazy sampling variation t-.statistic required The  value of is

QUESTION ID:132

Consider the following  simple regression equation of dependent variable (Y:) and explanatory variable (X):
Y=a+bX+€
Given the following data: S² = 250, residual variance = 5, b=0·2 and a = 0·5.
What will be the overall variance Sy²?   

QUESTION ID:133

Two important characteristics of any population are

QUESTION ID:134

Match List-l (Property) with List-II (Ecological  Level) :

List-I (Property                        List-II (Ecological Level

Fragmentation                        Community Pero 

Assembly                                   Ecosystem

 Integrity                                     Population

Dispersion                                  Landscape

Choose the correct answer from the options given below:

QUESTION ID:135

Match:List;_l(Clay Minerals) with List-II (Cation Exchange  Capacity-in cinol(+) .kg-1)
List-I (Clay Minerals)                           List - ii Cation Exchange Capacity -1 in emol (+) kg¹)
Vermiculite                                            5-25
Smectite                                                20-40
Illite                                                        100-120
Kaolinite                                                150-160
Choose the correct answer from the options given below

QUESTION ID:136

In urban atmosphere the concentration of CH4  and OH radical is  molecules 5 x 1019 m3and 1.8 X 103  molecules m-3 respectively the rate constant for 2nd  order reaction between OH and methane is8.36 x  1021

QUESTION ID:137

Computation of radiative forcing due to  Greenhouse Gas does NOT involve 

QUESTION ID:138

In a typical solar pond which region has the salt concentration gradient

QUESTION ID:139

In the model of r- and k selection rate of increase of two species are portrayed  as function of 

Population·density

Resource density

Habitat

Size

Choose the correct  answer  from the options  given below :

QUESTION ID:140

Given below are two statements one labelled as Assertion (A) and.the other labelled as
Reason(R).
Assertion.(.A) : In the Himalayas north-facing slopes have luxuriant growth of forests,whereas shruby drought - resistant vegetation inhabits the south- facing slopes 
Reason  (R)
South facing slopes in the northen hemisphere receive more sunlight than nearby north - facing slopes and ,therefore are warmer and drier .
Choose the correct answer from the options  given below :·

QUESTION ID:141

Which microbial metabolism  involves immobilisation  of soluble .metal species by forming complexing agents.like metal sulphides, .metal carbonates and metal phosphates?

QUESTION ID:142

The first State to be declared as an. organic State. ofthe country is

QUESTION ID:143

Which among. the following substances is responsible for global cooling instead  of global warming?

QUESTION ID:144

Major environmental impacts of the Tehri dam in the Central Himalaya are :

Submergence of fertile agricultural lands 

Reservoir induced seismicity

Increased incidences of landslides in the reservoir rim

Loss of biodiversity

Choose the correct  option

QUESTION ID:145

Sustainable development presupposes 

Maintenance of  ecosystem integrity

Improvemerit in economic and social conditions of people

Perpetual availbility of ecosystem services

Choose the correct option:

QUESTION ID:146

For a negatively skewed distribution, which is the. correct relation?

QUESTION ID:147

Which Article of. the Indian Constitution was used by Government of india to enact the Envirorunental Protection Act (EPA), 1986?

QUESTION ID:148

In a breeder reactor

QUESTION ID:149

In. a population, where  the allele frequency shifts by a random chance, the mechanism of evolution at work is.

QUESTION ID:150

Maximum concentration hydroxyl radical in earth's atmosphere is observed at