Tag: recycling

Questions Related to recycling

In ...................... strategy for saving the environment, things are used again and again.

commercial studies waste products conservation of natural and energy resources energy conservation and sources reduce, recycle, reuse importance of the conservation of natural resources recycling

  1. Reuse

  2. Invent

  3. Both A and B

  4. None of the above

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Correct Option: A
Explanation:

In reuse strategy for saving the environment, things are used again and again. Many items found around the home can be used for different purposes. So before you throw those items away, think about how they can be reused.

What is the most valuable recyclable component of a circuit board?

commercial studies waste products conservation of natural and energy resources energy conservation and sources reduce, recycle, reuse importance of the conservation of natural resources recycling

  1. Copper

  2. Silver

  3. Gold

  4. Platinum

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Correct Option: B

Recycling of paper has reduced 

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

  1. Reforestation

  2. Deforestation

  3. Aforestation

  4. None of the above

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Correct Option: B

Which of the following is the main contribution of recycling of paper?

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

  1. Pollution is reduced by 95%

  2. Energy is conserved by 20%

  3. Water is conserved by 90%

  4. None of the above

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Correct Option: D
Explanation:

D- Recycled paper production reduces transport and CO2 emissions. Recycling one ton of paper can save 17 mature trees and 7000 gallons of water and 4100 kilowatt-hours of electricity.

Paper and Glass are the wastes that can be

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

  1. Reuse

  2. Recycle

  3. Decompose

  4. Both A and B

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Correct Option: B
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.

Which one is recyclable waste?

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

  1. Paper

  2. Torn clothes

  3. Metallic and plastic discards

  4. All the above

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Correct Option: D
Explanation:
Recyclable wastes can be reused into new materials. For example, paper can be recycled and this will reduce deforestation because the paper is made from wood pulp. Torn clothes can be recycled to form bags and into other usable forms. Metallic and plastic discards can be melted and recycled into usable forms any number of times. Recycling reduces environmental pollution and uses less energy as compared to the production of new materials from raw materials.
Hence, all the options are correct.
So, the correct answer is 'All the above'.

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

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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

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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

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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

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

  1. Cellulose

  2. Plastic

  3. Screens

  4. All of the above

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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'