CBSE 2023 · Region 5 · Set 1 · Q7 · 1 mark
The primary productivity in an ecosystem is expressed as :
Official answer
From CBSE’s own marking scheme for this paper.
(A)
$\displaystyle \mathrm{gm}^{-2} \mathrm{yr}^{-1}$
EcosystemProductivityRemembermcqeasy
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CBSE Class 12 Biology past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.