Which of the following is biodegradable pollutant?
Correct answer: A. Sewage
- A. Sewage
- B. Plastic
- C. Polythene
- D. DDT
Explanation
Sewage contains organic matter that microorganisms can decompose, so it is a biodegradable pollutant. Plastic, polythene and DDT persist in the environment and are treated as non-biodegradable pollutants.
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