Question

Food chain begins with :
(a) respiration
(b) photosynthesis
(c) decomposition
(d) decay

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Answer

(b) photosynthesis

Reason — In a food chain, the first level are the producers (photosynthetic plants). They synthesize organic substances by the process of photosynthesis (i.e., they combine simple compounds with the help of solar energy into complex organic substances).

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