Recycling

Q. ____________ chemicals are added to wood pulp for extracting cellulose.

1. Carbonate
2. Sulphate
3. Phosphate
4. Chloride

Q.

We should plant trees and nurture the ones already present in the neighbourhood, why?

Q.

Name any four waste items which can be recycled.

Q.

List a few ways to reduce the household waste generated by us.

Q. The paper can be recycled for ________ times.

1. 2 to 4 times
2. 3 to 4 times
3. 4 to 5 times
4. 5 to 7 times

Q. Paper can be reused by recycling it 5-7 times.

1. True
2. False

Q. Use of compressed cardboard helps in reducing deforestation.

1. True
2. False

Q. Question 13
Mention any one action that you have undertaken to conserve trees.

Q. What is recycling of paper? How recycling of paper helps in saving trees.

Q. To minimise garbage we should

1. Insist on the use of paper bags
2. Use vermicomposting at home and deal with our kitchen waste
3. Recycle paper
4. All of the above

Q. Which category of paper can be used for recycling?

1. Pre-consumer waste
2. Mill broke
3. All of the above
4. Post-consumer waste

Q.

Motor oils and ____ are common materials that are recycled.

Q. Fill in the blank with the most appropriate word.
I didn't realize you wanted to keep the letter. I've __________ it up.

1. torn
2. wrapped
3. pulled
4. broken
5. smashed

Q. The common bleaching agent of recycled paper is

1. Sodium hydrosulfite
2. Chlorine
   
3. Hydrogen peroxide
4. Both A and B