Question

Which of the following is a non-biodegradable pollutant?

• A. Paper
• B. DDT
• C. Wood
• D. Vegetable peel

Hint:

Natural waste = Biodegradable. Chemicals like DDT = Non-biodegradable.

Answer 1

The Correct Option is B

Concept: Pollutants are substances that contaminate the environment. They can be biodegradable or non-biodegradable depending on whether microorganisms can decompose them. Explanation:

• Biodegradable pollutants can be broken down by microorganisms (e.g., paper, wood, vegetable peels).
• Non-biodegradable pollutants cannot be decomposed easily and persist in the environment for a long time.

About DDT:

• DDT (Dichloro-Diphenyl-Trichloroethane) is a synthetic pesticide.
• It does not decompose naturally and accumulates in the food chain.
• Causes biomagnification and environmental harm.

Conclusion: DDT is a non-biodegradable pollutant because it does not break down naturally and persists in the environment.