Tag: plastic waste

Questions Related to plastic waste

What is the best method to avoid pollution by using plastic bags?

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  1. Bury the plastic bags in the soil

  2. Use biodegradable plastic bags

  3. Throw the plastic bags into the river

  4. Burn the plastic bags in a rubbish dump

Show answer
Correct Option: B
Explanation:

The plastics are the non-biodegradable wastes because they are synthetic polymers which cannot be acted upon by the microbes. The plastics should not be dumped in the soil, river or rubbish dump. The biodegradable plastics should be used which will reduce the pollution and the problems created by the use of plastics. 

Thus, the correct answer is option B. 

Who proved that blends of polyblend (plastic waste) and bitumen, when used to lay roads, enhanced the bitumen's water repellent properties and helped to increase road life?

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  1. Amrita Devi

  2. Ramdeo Misra

  3. WH Pearsall

  4. Ahmed Khan

  5. Ramesh Chander Dagar

Show answer
Correct Option: D
Explanation:

K. Ahmed Khan is an Indian scientist and businessman who made success in using plastic for road construction. He is the founder of KK Plastic Waste Management Pvt.Ltd.He along with his brother Rasool Khan, stung by protests to ban plastic, hit upon the idea of recycling plastic and mixing it with bitumen to lay roads. Ahmed Khan proved that blends of Polyblend and Bitumen, when used to lay roads enhanced the bitumen's water repellant properties and helped to increase road life by a factor of three.

So the correct answer is 'Ahmed Khan'.

Which one of the following can be recycled?

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  1. Household waste

  2. Paper

  3. Plastic

  4. All of the above

Show answer
Correct Option: B
Explanation:

Paper is waste that can be easily recycled. Used paper can be collected, out into machines and used as the paper again. This can greatly reduce the number of trees being cut for making paper. A lot of time, energy and money are also saved in this process. So, paper recycling should be carried out more often.

Thus, option B " Paper" is the correct answer.

Ways by which you can save paper is

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  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

Show answer
Correct Option: A
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.

To minimise garbage we should

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  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

Show answer
Correct Option: D
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. 

During recycling of paper, paper is broken down into

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  1. Cellulose

  2. Plastic

  3. Screens

  4. All of the above

Show answer
Correct Option: A
Explanation:

The process of waste paper recycling involves mixing of used paper with water and chemicals to break it down. It is then chopped  and heated, which breaks it down further into strands of cellulose, a type of organic plant material; this resulting mixture is called as pulp or slurry. It is strained through screens, which remove any glue or plastic that may still be in the mixture then cleaned, de-inked, bleached, and mixed with water. Then it can be made into new recycled paper or other products.

So, the correct answer is 'Cellulose'

......... of paper is made up of trees.

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  1. 50%

  2. 10%

  3. 95%

  4. 5%

Show answer
Correct Option: C
Explanation:

Paper is made from the cellulose fibres which are obtained from the wood of the trees. The cellulose fibres are converted to pulp. This pulp is treated with various chemicals and then dried to form the sheets of paper. There are substances like lignin in the wood of trees which results in the paper to become yellow and brittle over some time. So, the yield from the trees for paper production is about 95%. 

Thus, the correct answer is option C. 

Every ton of paper recycled saves

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  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

Show answer
Correct Option: A
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.

All of the following papers can be recycled except

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  1. Newspapers

  2. Magazines

  3. Carbon papers

  4. Catalogues

Show answer
Correct Option: C

Newspaper is considered as a lower grade paper because

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  1. It cannot be recycled

  2. It has been already recycled numerous times

  3. It contains less amount of cellulose

  4. It contains large amount of cellulose

Show answer
Correct Option: B