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Biodegradable Wastes : Substances that are broken down by the biological processes are said to be biodegradable. These substances are decomposed through the actions of fungi, bacteria, and other living organisms. 

For Examples : Food waste, paper, wood, cloth, cow-dung etc.

Non-Biodegradable Wastes : Substances that are not broken down by biological processes. These substances may be in solid, liquid or gaseous form. These substances are inert and simply persist in the environment for a long time or may harm the various members of the ecosystem. These includes DDT, insecticides, pesticides, mercury, plastics, polythene bags, glass, radioactive wastes. These non-biodegradable wastes are major pollutants of the environment.

1. Which is non biodegradable?

a. Wood, paper, leather

b. Polythene, detergent, grass

c. Plastic, detergent, glass

d. Plastic, bakelite, DDT

2. _________ is a biodegradable pollutant.

a. Paper

b. Cotton cloth

c. Cotton

d. DDT

3. ___________ is a biodegradable substance.

a. Polythene

b. Paper

c. Plastic

d. Glass

4. Which of the following is a biodegradable substance?

a. Glass

b. Plants

c. Plastics

d. Polythene

5. Which of the following is a non-biodegradable substance?

a. Virgin plastic

b. Plastic

c. Plants

d. Plant producers

1 Answer

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Best answer

1. d. Plastic, bakelite, DDT

2. d. DDT

3. b. Paper

4. b. Plants

5. b. Plastic

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