Tag: reduce, recycle, reuse

Questions Related to reduce, recycle, reuse

Which one of the following can be recycled?

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

  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

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

  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

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

  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

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

  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

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Correct Option: C

Newspaper is considered as a lower grade paper because

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

  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

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Correct Option: B

Recycling of paper can save

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

  1. 60% of coal

  2. 10% of coal

  3. 43% of water

  4. 20% of energy

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Correct Option: A

The paper is tossed in .......... during the paper recycling process.

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

  1. Grinder

  2. Pulper

  3. Incinerator

  4. None of the above

Show answer
Correct Option: B