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D.D.T. is

1. a non–degradable pollutant
2. a bio-degradable pollutant
3. not a pollutant
4. an antibiotic

Correct answer: a non–degradable pollutant

Solution

D.D.T. (Dichlorodiphenyltrichloroethane) is a non-degradable pollutant as it persists in the environment for a long time and accumulates in the food chain, causing biomagnification.

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