Question

Which one of the following is non-biodegradable?

• A. DDT
• B. Vegetable peel
• C. Cardboard
• D. Bark of trees

Answer 1

The correct option is A DDT

Non-biodegradable substances are those substances which cannot be broken down into simpler, harmless substances in the environment. DDT (Dichloro Diphenyl Trichloroethane) is a synthetic pesticide. It is used to kill the pest. It is non-biodegradable and it gets accumulated in the successive trophic level. Other examples of non-biodegradable substances are mercury, lead, plastics.

Thus, the correct answer is option A.