Environmental Studies · General Awareness

Waste Management and Pollution

2,230 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

The Interceptor helps by:

  1. Scooping plastic out of rivers.

  2. Intercepting trash before it enters rivers.

  3. Intercepting plastic trash before it enters landfills.

  4. Digging trash out from the bottom of the sea.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Interceptor is a solar-powered, automated system designed specifically to extract plastic waste from rivers before it reaches the ocean.

Multiple choice

Which answer will not help our earth?

  1. Skip straws.

  2. Avoid plastic packaging.

  3. Recycle what you can.

  4. Create single-use plastic utensil kits.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Creating single-use plastic utensil kits increases the amount of plastic waste generated, which is contrary to environmental conservation efforts.

Multiple choice

Approximately how many pieces of trash are in the Great Pacific Garbage Patch?

  1. 4.5 trillion pieces of trash.

  2. 1 billion pieces of trash.

  3. 2 trillion pieces of trash.

  4. 19 trillion pieces of trash.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Scientific studies, such as those published in Scientific Reports, estimate that the Great Pacific Garbage Patch contains approximately 1.8 trillion pieces of plastic, which is often rounded to 2 trillion in general educational contexts.

Multiple choice

What does hazardous waste harm?

  1. living organisms

  2. carnivores

  3. consumers

  4. autotrophs
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hazardous waste contains chemicals or materials that are toxic, corrosive, or reactive, posing a direct threat to the health of living organisms. While it affects specific groups like consumers or autotrophs, the most encompassing answer is living organisms.

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'.