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Science · 2026 · 1 mark
CBSE 2026 · Region 2 · Set 1 · Q9
Assertion (A): There are generally a greater number of individuals at the lower trophic levels of an ecosystem. Reason (R): The greatest number is of…
Assertion (A) : There are generally a greater number of individuals at the lower trophic levels of an ecosystem.
Reason (R) : The greatest number is of the producers.
Official answer
(B)
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
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CBSE Class 10 Science past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.