Environmental Studies · General Awareness

Waste Management and Pollution

2,184 Questions

Waste management and pollution control address waste-to-energy technologies, hazardous disposal, and organic recycling methods. The questions cover landfilling, bioremediation, and marine debris indicators. This topic holds significant weight in UPSC, State PSC, and SSC general studies and environmental exams.

Waste-to-energy technologiesHazardous waste disposalBiogas storage methodsOrganic waste compostingPlastic pollution

Waste Management and Pollution Questions

Multiple choice

What is the best solution for waste?

  1. reduce, reuse, recycle

  2. store, stack, substitute

  3. turn, track, transfer

  4. slip, slop, slap
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The waste management hierarchy prioritizes reducing consumption, reusing items, and recycling materials to minimize the amount of waste sent to landfills.

Multiple choice

Secondary sludge uses

  1. gravitational sedimentation

  2. primary clarifier

  3. non-biodegradable materials

  4. micro-organism to consume waste organic matter
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Secondary sludge, or activated sludge, consists of a mass of bacteria and other microorganisms that consume the organic waste present in the sewage during the secondary treatment stage.

Multiple choice

what happens to the sludge in the water treatment plant?

  1. it is recycled

  2. it is released to the stream

  3. it is burned

  4. it is hauled to the landfill (dump)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sludge generated in water treatment plants is typically dewatered and then disposed of in landfills, incinerated, or sometimes applied as fertilizer if it meets safety standards.

Multiple choice

plastic bags are degenerated in

  1. 10 to 15 yrs

  2. 2 to 5 months

  3. 1 yr

  4. several yrs
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plastic bags are synthetic polymers that resist natural decomposition. They persist in the environment for many years, typically ranging from 10 to 20 years or more depending on environmental conditions. This long degradation time is why plastic pollution is such a significant environmental concern.

Multiple choice

Why is important to recycle?

  1. increase the amount of garbage thrown in the landfill

  2. conserve the aluminum used to cook dinners

  3. reduce the amount of plastic in her home

  4. save energy that would be needed to replace these products
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Recycling saves energy because it is generally less energy-intensive to process recycled materials into new products than it is to extract and refine raw materials.

Multiple choice

What is the different way human help the environment

  1. Recycle

  2. pollution

  3. Litter

  4. trash the envirorment
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Recycling is a positive human action that reduces waste and conserves resources, helping the environment. The other options (pollution, litter, trashing) are harmful.

Multiple choice evs interdependence in our environment meaning of environment significance of biodiversity habitat and adaptation

Which of the following biotic component is responsible for waste degradation?

  1. Producer

  2. Consumer

  3. Decomposers

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Decomposers, such as bacteria and fungi, break down dead organic matter into simpler substances. This process is essential for recycling nutrients back into the ecosystem.

Multiple choice evs contaminated water spreads disease mosquitoes and malaria diseases caused by mosquitoes water borne diseases

Sanitation at public places can be maintained by

  1. Proper drainage.

  2. Garbage management.

  3. Sufficient public toilet facilities.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Sanitation refers to public health conditions related to clean drinking water and adequate treatment and disposal of human wastes and sewage. Preventing human contact with feces is part of sanitation.
  • Sanitation at public places can be maintained by Proper drainage,Garbage management and Sufficient public toilet facilities.
  • So, the correct answer is 'All the above'.
Multiple choice biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

Compost is___________

  1. Decomposed remnants of organic material

  2. Decomposed remnants of inorganic material

  3. Fresh remnants of organic material

  4. Fresh remnants of inorganic material
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • Compost is a nutrient-rich organic substance produced by the decomposition of remnants wastes like dung or bedding. It is used in gardens, agriculture as a fertilizer.

Therefore, the correct answer is option A.

Multiple choice biology improvement in food resources manure manures and fertilisers role of organic manures in soil management

In compositing, solid waste is converted into;

  1. Ashes

  2. Manure

  3. Clinkers

  4. Fumes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Composting converts organic solid waste into nutrient-rich manure through microbial decomposition. This process recycles waste materials into valuable soil amendments that improve soil structure and fertility. The question contains a typo ('compositing' should be 'composting').