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 poster writing english

Which of the options may be included in a poster on the given topic:

Urging people to stop littering 

  1. Littering is not only harmful to the environment, but also harmful to your health.

  2. Stop Littering!

  3. It is a crime to litter so stop today and see a cleaner, greener tomorrow.

  4. What is littering? It is the act of....
Reveal answer Fill a bubble to check yourself
B,C Correct answer
Explanation

Posters are placards displayed in public announcing and advertising something. The purpose of a poster is either to create social awareness or to advertise or even extend public invitations and display notices.
The correct answers are Options B and C. This poster here, is used to urge people to stop littering. Both Options B and C make appropriate quotes to be included in a poster to make it attractive and interesting. The posters have important information in persuasive language. Slogans make an important part of the posters. Details and formal language is avoided in a poster to retain compactness.
Options A and D are incorrect as they do not adhere to the format of poster making.

Multiple choice zoology introduction to microbiology microbial pollution control environmental use of microorganism microbes in waste treatment and biogas

Sewage sludge is used as a

  1. Manure

  2. Biogas generator

  3. Tipping

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sewage sludge is a product of wastewater treatment. Once treated, sewage sludge is then dried and added to a landfill, applied to agricultural cropland as fertilizer, or bagged with other materials and marketed as “bio-solid compost” for use in agriculture and landscaping.

Hence, the correct answer should be 'Both A and B'.

Multiple choice evs sources of water conservation of natural and energy resources energy conservation and sources reduce, recycle, reuse importance of the conservation of natural resources

Method of managing used envelope: Reuse: : Method of managing fuels.

  1. Recycling

  2. Use for repurpose

  3. Reduce the use

  4. Refuse the use
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The waste management hierarchy emphasizes the 3Rs: Reduce, Reuse, and Recycle. If reusing an envelope is a management method, reducing the consumption of fuel is the corresponding conservation strategy.

Multiple choice chemistry energy production hazards and safety measures of radiations harmful effects and safety precautions for radiations nuclear physics

Which statement describe general waste?

  1. Much of the general waste at St. Paul's Hospital includes common items found in household garbage.

  2. Much of the general waste at St. Paul's Hospital is different and must be treated in special ways

  3. Much of the general waste at St. Paul's Hospital is not the same as other garbage and is dangerous if not disposed of properly

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Much of the general waste at At. Paul hospital includes common items found in household garbage. 

General waste also called residual waste is material from business and household that can be recycled. 

Multiple choice physics energy production hazards and safety measures of radiations harmful effects and safety precautions for radiations nuclear physics

PPE is 

  1. equipments for handling radioactive waste.

  2. equipments for handling radioactive substance.

  3. Personal Protective Equipment

  4. none of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

PPE is personal protective equipment refers to protective clothing, goggles, helmets or other garments required to protect the wearer's body from injury and infection. The purpose of PPE is to reduce employee exposure to hazards.

Multiple choice biology garbage in, garbage out recycling of paper ways to reduce non degradable garbage recycling

Paper and Glass are the wastes that can be

  1. Reuse

  2. Recycle

  3. Decompose

  4. Both A and B
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
The 'three Rs' that will help us to conserve natural resources for long-term use are reduced, recycle and reuse.
Reduce- Make use of smaller or less in amount, degree or size. For example, electricity and water.
Recycle- Convert (waste) into reusable material. For example, plastic cups and buckets, glass tumbler, paper, metal objects.
Reuse- Use again or more than once. For example, used envelopes, plastic carry bags, bottles of jam. 
Thus, the correct answer is option B.
Multiple choice biology garbage in, garbage out recycling of paper ways to reduce non degradable garbage recycling plastic waste thermocol reduce, recycle, reuse

Ways by which you can save paper is

  1. Collect used paper and recycle it

  2. Spread awareness about e-waste

  3. Spread awareness about the importance of soil

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

About 80,000-1,60,000 trees are cut down daily to make up to the need of paper products worldwide. Recycling of paper is the process wherein used paper is converted into a resuable form. Recyling has many benifits:

  • It heps save trees from cutting down.
  • Saves tons of water used in making fresh new virgin trees. Since recycling of paper requires less water.
  • Saves electricity usage. Since recycling of paper consumes less electrical power.
Thus collecting waste paper and recycling it helps save trees and paper.

Multiple choice biology garbage in, garbage out recycling of paper ways to reduce non degradable garbage recycling plastic waste thermocol reduce, recycle, reuse

To minimise garbage we should

  1. Recycle paper

  2. Use vermicomposting at home and deal with our kitchen waste

  3. Insist on the use of paper bags

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • The paper can be recycled in order to minimize waste production.
  • Vermicomposting is the process in which the earthworms are used for the breakdown of the organic matter and production of compost. 
  • The paper bags are biodegradable and recyclable materials and so the use of these materials should be increased. 
Thus, the correct answer is option D. 
Multiple choice biology garbage in, garbage out recycling of paper ways to reduce non degradable garbage recycling plastic waste thermocol reduce, recycle, reuse

Every ton of paper recycled saves

  1. More than 3.3 cubic yards of landfills

  2. Less than 3.3 cubic yards of landfills

  3. Garden

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Every ton of paper recycled saves more than 3.3 cubic yards of landfill space, and if measured by weight, more paper is recovered for recycling than plastic, aluminum, and glass combined. And according to EPA, by recycling one ton of paper 17 trees, 7,000 gallons of water and 463 gallons of oil can be saved.
So, the correct answer is option A.
Multiple choice biology garbage in, garbage out recycling of paper ways to reduce non degradable garbage recycling plastic waste thermocol reduce, recycle, reuse

During paper recycling, .......... is used to bleach pulp.

  1. Bleaching powder

  2. Hydrogen peroxide

  3. Water

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Paper recycling is a process wherein, the paper that is used, discarded by the consumer, is collected and transported to paper mills. The papers are mixed with water and chemicals, broken down, converted into paper pulp and transformed into reusable form. The pulp is colored and bleaching is performed to remove the color. The chemicals which are used for bleaching are hydrogen peroxide, sodium hydrosulfite or sodium dithionite. These chemicals help in deinking of the pulp and increasing brightness. 

Thus, the correct answer is option B. 

Multiple choice zoology bioenergy biogas environmental use of microorganism microbes in waste treatment and biogas

The residue left after methane production from cattle dung is:

  1. burnt

  2. burned in land fills

  3. used as manure

  4. used In, civil construction
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The residue left after methane production from cattle dung is used as manure because it supply some organic materials and minerals to the soil.
So, the correct answer is 'used as manure'
Multiple choice zoology microbes in human welfare biogas environmental use of microorganism microbes in waste treatment and biogas

Primary sludge is used for

  1. Preparation of compost

  2. Preparation of manure

  3. Biogas production

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

Primary sludge is the solid material removed during the primary sedimentation process of sewage treatment. It is organic-rich and can be processed via anaerobic digestion for biogas production, composting, or manure preparation.