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TLS Online TPP Program

#Question id: 37867

Given below are two statements:
Statement I: The duration of cell generation in the log phase is constant at 12 hours for all plant species. 
Statement II: The stationary phase is the final phase during which the cell number does not change.

In light of the above statements, choose the correct answer from the options given below:

#Plant Biotechnology
  1. Statement I is true but Statement II is false
  2. Both Statement I and Statement II are true
  3. Statement I is false but Statement II is true
  4. Both Statement I and Statement II are false
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TLS Online TPP Program

#Question id: 40498

#Applied Microbiology

Assertion (A): Tertiary treatment is often considered the most expensive and advanced stage of wastewater treatment.

Reason (R): It involves specialized processes like UV radiation, chlorination, or reverse osmosis to remove specific contaminants and pathogens.
TLS Online TPP Program

#Question id: 40499

#Applied Microbiology

Match the wastewater treatment step in Column A with its primary objective in Column B

Column A (Step)Column B (Objective)
1. Bar Screensi. Removal of dissolved nitrates and phosphates
2. Grit Chamberii. Removal of large floating objects (plastics, rags)
3. Secondary Clarifieriii. Settlement of sand, gravel, and heavy inorganic solids
4. Tertiary Treatmentiv. Separation of biological flocs (activated sludge)
TLS Online TPP Program

#Question id: 40500

#Environmental Science

Match the waste treatment method with its primary purpose:

List I (Process)List II (Outcome/Characteristic)
A. Composting1. Volume reduction
B. Incineration2. Nutrient recycling
C. Landfilling3. Energy recovery
D. Anaerobic digestion4. Methane production
TLS Online TPP Program

#Question id: 40501

#Environmental Science

Match the resource with its environmental concern:

List I (Source)List II (Impact/Issue)
A. Groundwater3. Over-extraction (Depletion of aquifers)
B. Fossil fuel2. Air pollution (Emissions from burning)
C. Soil1. Salinization ( accumulation of salt in land)
D. Plastic waste4. Microplastic contamination (Breakdown of plastics)
TLS Online TPP Program

#Question id: 40502

#Environmental Science

Regarding solid waste management:
1. Segregation improves recycling efficiency.
2. Open dumping eliminates toxic emissions.
3. Circular economy reduces landfill dependency.
Correct statements are:
TLS Online TPP Program

#Question id: 40503

#Environmental Science

Assertion–Reason
Assertion (A): Waste minimization reduces environmental burden.
Reason (R): Reduced waste lowers resource extraction and pollution.