Question

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Assertion (A): The ozone layer is a region of concentration of ozone molecule (O3) in the
carth's atmosphere. The layer sits at an altitude of about 10-50KMs with a maximum
concentration in the stratosphere at an altitude of approximately 25KMs.

Reason (R) : In recent years, scientists have measured a seasonal thinning of the ozone layer primarily at the South Pole. This phenomenon is being called the ozone hole.

A) Both A and Rare true and R is the correct explanation of A.
B) Both A and R are true, but R is not the correct explanation of A.
C) A is true, but Ris false.
D) A is false, but R is true.​

Answer 1

Answer:

A

Explanation:

both the assertion and the reason are true