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Biology · 2023 · 2 marks
CBSE 2023 · Region 3 · Set 3 · Q21
On August 22 in the year 2022, 3358 fires were detected in the Amazon rainforests. Write one short-term and one long-term effect of this event on the…
On August $\displaystyle 22$ in the year $\displaystyle 2022$, $\displaystyle 3358$ fires were detected in the Amazon rainforests. Write one short-term and one long-term effect of this event on the biotic and abiotic components of the environment.
Marking-scheme solution
Short-term; Death of organisms / habitat loss of migratory animals/Food loss/Green cover loss/Pollution/ any other correct effect.
Long term: fragmentation of habitat/ effects of pollution/ population decline/important links in food chains disappear leading to imbalances in biodiversity/any other correct effect.
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CBSE Class 12 Biology past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.