Question

Which of the following is a biodegradable pollutant?

• A. DDT
• B. Mercury salts
• C. Aluminium foil
• D. Domestic waste

Answer 1

The correct option is D

Domestic waste

The correct option is D.

Explanation of the correct option:

1. Biodegradable compounds are those that can be degraded and broken down into simpler substances by microbes acting on them, while non-biodegradable substances are those that cannot be acted on by microorganisms and are not broken down into simpler substances.
2. Domestic waste includes paper waste, kitchen waste, etc.
3. The kitchen waste mostly comprises fruit and vegetable peels, spoiled food spoiled fruits and meat, etc.
4. All the substances can be easily degraded by the environment.
5. DDT, mercury salts, and aluminum foil are non-biodegradable and cause pollution in the environment.

Explanation of the incorrect option:

Option A:

DDT is a chemical pollutant that also gets biomagnified in organisms.

Option B:

These are the pollutants that come out of industries and are not biodegradable.

Option C:

These are one of the kitchen wastes but are non-biodegradable.

Final answer: Domestic waste is a biodegradable pollutant.