Tag: ways to reduce non degradable garbage

Questions Related to ways to reduce non degradable garbage

Which of the following is used for deinking of papers?

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

  1. Surfactant

  2. Oxygen

  3. Carbon chloride

  4. None of the above

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Correct Option: A
Explanation:
Deinking is a very critical step in the manufacturing of paper or board from recycled paper or board. In this process, printing ink, dirt, and specks are removed from the fibres. It is done with a combination of mechanical action and chemicals added into the pulper and at flotation which involves the use of surfactants to ensure the detachment of ink from the fibres.
Generally, the amount of surfactant used is about 0.025-0.25%
So, the correct answer is option A.

Old newspapers can be recycled into

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

  1. New paper

  2. Paper bag

  3. Plastics

  4. Both A and B

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Correct Option: D

Sheela make a paste of paper from her old note books. But she wants to make colourful paper. What she will used to make paper colourfull?

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

  1. Paints

  2. Edible colour

  3. Colourfull paper

  4. Both B and C

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Correct Option: D

Which of the following paper cannot be recycled?

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

  1. Old newspaper

  2. Note book

  3. Magazine

  4. Plastic coated paper

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Correct Option: D

Flower petals can be used to give colour to the

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

  1. Paper

  2. Plastics

  3. Water

  4. Food

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Correct Option: A

Paper is made up of

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

  1. Animal

  2. Plant

  3. Chemicals

  4. None of the above

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Correct Option: B

Putrescible organic waste are included in

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

  1. Combustible Waste

  2. Non Combustible Rubbish

  3. Rubbish

  4. Garbage

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Correct Option: D

Select the correct sequence of the process of paper recycling.

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

  1. Collection, sorting, pulping, deinking

  2. Collection, pulping, sorting, deinking

  3. Collection, deinking, sorting, pulping

  4. Deinking, sorting, pulping

Show answer
Correct Option: A
Explanation:

Paper, torn clothes and metallic and plastic discards are recyclable wastes. Recycling is processing used materials (waste) into new, useful products. This is done to reduce the use of raw materials that would have been used. Paper recycling is a process wherein, a paper that is used, discarded by the consumer, is collected and transported to paper mills. Here, it is sorted and is mixed with water and chemicals and converted into paper pulp. Deinking is carried out to remove printing ink from the paper fibers from the pulp and transformed into reusable form.

Thus, the correct answer is option A.

Which of the following human activity can maintain the biological equilibrium?

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  1. Poaching endangered animals

  2. Recycling of paper

  3. Deforestation

  4. None of the above

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Correct Option: B
Explanation:

Recycling is the process by which the product is recycled and made available to use again. The recycling of paper not only saves valuable space in our landfills, but it also helps reduce greenhouse gas emissions and when one recycle, one also have to use fewer resources like water and energy to turn that item into another usable item. If the paper is recycled, fewer trees will be cut down for paper pulp. This will help to maintain the biological equilibrium in the ecosystem.

Thus, the correct answer is option B. 

Carbon chloride is used in

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

  1. Bleaching of new paper

  2. Bleaching of recycled paper

  3. Bleaching of clothes

  4. None of the above

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Correct Option: B