NEET Biology question

Not in NEET syllabus

**Assertion:** Presently, the global atmosphere is warming up. **Reason:** The depletion of the stratospheric ozone layer has resulted in an increase of ultraviolet radiation reaching the earth.

(A)Both assertion and reason are true and reason is the correct explanation of assertion
(B)Both assertion and reason are true but reason is not the correct explanation of assertionCorrect
(C)Assertion is true but reason is false
(D)Assertion is false but reason is true

Answer: (B)

Solution

The global atmosphere is indeed presently warming (assertion true), and ozone layer depletion has indeed increased UV radiation reaching the earth's surface (reason true). However, these are two distinct atmospheric phenomena with different driving mechanisms — global warming results mainly from

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Question ID VK-130400