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Science · 2023 · 1 mark
CBSE 2023 · Region 6 · Set 1 · Q18
Assertion (A) : The energy which passes to the herbivores does not come back to autotrophs.
Reason (R) : The flow of energy in a food chain is unidirectional.
Official answer
From CBSE’s own marking scheme for this paper.
(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of (A).
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CBSE Class 10 Science past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.