Question

Study the two statements labelled as Assertion (A) and Reason (R).

A: DDT killed birds and animals.
R: DDT was sprayed for mosquito control.

Choose the correct option.

• A. Both A and R are true, and R explains A.
• B. R is true, but A is false.
• C. Both A and R are true, but R does not explain A.
• D. Both A and R are false.

Answer 1

The correct option is A Both A and R are true, and R explains A.

DDT was sprayed to control mosquitoes, but the environment's sink function did not work on DDT. The chemicals were eventually mixed with water and fishes consumed it. Although the fishes were not affected by DDT, the birds and animals, which consumed the contaminated fishes, died. Hence, DDT caused irreversible damage to the environment.