Question

Assertion (A): Oxygen plays a key role in the troposphere.

Reason (R): Troposphere is not responsible for all biological activities.

विकल्प

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

• Both (A) and (R) are correct and (R) is not the correct explanation of (A)

• Both (A) and (R) are not correct

• (A) is correct but (R) is not correct

Answer 1

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