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 biology garbage in, garbage out waste management and its methods garbage disposal solid waste and control

Which of the following garbage is not converted into compost by the redworms?

  1. Vegetable peel

  2. Plant waste

  3. Animal waste

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

Redworms (vermicomposting) consume organic matter like vegetable peels, plant waste, and animal waste. Rags, which are often synthetic or treated fibers, cannot be processed by redworms.

Multiple choice biology garbage in, garbage out waste management and its methods garbage disposal solid waste and control

All of the following are best way to dispose of the garbage except

  1. Landfill

  2. Vermicomposting

  3. Burning of plastics

  4. Chemical treatment
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Burning plastics releases toxic chemicals and pollutants into the atmosphere, making it an environmentally hazardous practice. Landfilling, vermicomposting, and chemical treatment are managed disposal methods.

Multiple choice importance of waste disposal need and method for reducing, reusing and recycling waste geography

What does reduce mean when applied for waste?

  1. Use less things that produce waste.

  2. Don't buy anything, ever

  3. Use more things that produce waste.

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


Reduce in its original sense means to limit the usage.

But in environmental sense reduce also has another meaning.

It means in the process of producing any product, the raw material used should be in such a way that it produces less waste.

Multiple choice importance of waste disposal need and method for reducing, reusing and recycling waste geography

Which of the following shows the correct hierarchy? 

  1. Recycle, Reduce, Reuse

  2. Reuse, Recycle, Reduce

  3. Refuse, Refuge, Rufus

  4. Reduce, Reuse, Recycle
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 

The correct hierarchy of the process is reduce, reuse and recycle.

Reduce: means in the process of producing any product, the raw material used should be in such a way that it produces less waste.

Reuse: it is a using of a product multiple times. For example milk bottles in which milk is served can be used daily to serve milk.

Recycle: it is complete conversion of a product into the state of raw material.

Multiple choice importance of waste disposal need and method for reducing, reusing and recycling waste geography

Reuse of stuff would __________.

  1. help municipal waste management

  2. minimize the strain on the environment

  3. harm the environment

  4. be difficult and time consuming
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

  • Reuse: It is using a product multiple times. The product is used directly without any treatment. Any item in good condition can be reused.
  • By reusing we can reduce municipal wastage and so reducing environmental strain.

Multiple choice importance of waste disposal need and method for reducing, reusing and recycling waste geography

Where does our garbage go when we throw things away?

  1. Landfills

  2. Lakes

  3. A bigger garbage can

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

Landfill is the place where garbage go when we throw things away.

It is a site used to dump the garbage by burial. It is the oldest method of garbage treatment.

Other names for landfill include tip, dump, rubbish dump, garbage dump or dumping ground.

Multiple choice social science waste generation and management origin of waste products e-wastes waste generation waste and its types

Select the correct statement out of the following.

  1. Electrostatic precipitators $ \left( { ESP } _{ s } \right) $ can remove over 99% particulate matter present in the exhaust from a thermal power plant.

  2. Over half of the e-wastes generated in developed countries are exported to developing countries, mainly to China, India and Pakistan, where metals like Cu, Fe, Si, Ni, etc., are recovered during recycling process.

  3. Use of nuclear energy has two very serous inherent problems first is accidental leakage and the second is safe disposal of radioactive wastes.

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • An electrostatic precipitator($ESP _s$) is a device that removes suspended dust particles from a gas or exhaust by applying a high-voltage electrostatic charge and collecting the particles on charged plates. It can remove 99% of particulate matter from thermal power plant exhaust.
  • e-waste is discarded electronic appliances such as mobile phones, computers, and televisions. Over half of the e-waste generated in developed countries are exported to developing countries, mainly to China, India, and Pakistan, where metals like Cu, Fe, Si, Ni, etc., are recovered during the recycling process.
  • Nuclear waste is the radioactive waste material, for example from the use or reprocessing of nuclear fuel. Hence Use of nuclear energy has two very serious inherent problems first is accidental leakage and the second is the safe disposal of radioactive wastes. Hence It has been recommended that storage of nuclear waste after sufficient pretreatment should be done in suitably shielded containers buried within rocks about 500m deep to prevent its harmful effects.
  • So, the correct answer is 'All the above',
Multiple choice social science waste generation and management origin of waste products e-wastes waste generation waste and its types

Waste is said to be

  1. Subjective

  2. Destructive

  3. Objectively inaccurate

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

The term waste is often subjective (because waste to one person is not necessarily waste to another) and sometimes objectively inaccurate (for example, to send scrap metals to a landfill is to inaccurately classify them as waste, because they are recyclable).