NEET Biology question

Biology Ecosystem NEET

**Assertion:** Oceans are a low productivity ecosystem despite occupying about 70% of earth's surface. **Reason:** In aquatic ecosystems, productivity is limited by light which decreases with increasing water depth.

(A)Assertion is True, Reason is True; Reason is correct explanation for AssertionCorrect
(B)Assertion is True, Reason is True; Reason is not correct explanation for Assertion
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is True

Answer: (A)

Solution

Oceans, despite their vast surface area, contribute relatively little to global primary productivity because photosynthesis is restricted to the photic zone, as light intensity

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Question ID VK-127061