Assertion (A): Ozone is destroyed by solar radiation in the upper stratosphere.

Reason (R): Thinning of the ozone layer allows excessive UV radiations to reach the surface of the earth.

(i) Both A and R are correct and R is the correct explanation of A.

(ii) Both A and R are correct but R is not the correct explanation of A.

(iii) Both A and R are not correct.

(iv) A is not correct but R is correct.

Answers (1)

The answer is the option (iv) A is not correct, but R is correct.

Explanation: Ozone is produced in the stratosphere as UV rays act on O_{2} molecules. The major reason for ozone depletion is CFCs. With the depletion of the ozone layer, UV rays filter into the troposphere and cause skin cancer, cataract, sunburn, etc., it also damages fish productivity.

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