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Science · 2023 · 2 marks
CBSE 2023 · Region 4 · Set 1 · Q26
Use of several pesticides which results in excessive accumulation of pesticides in rivers or ponds, is a matter of deep concern. Justify this statement.
Marking-scheme solution
As these pesticides are non biodegradable so they get concentrated at each subsequent trophic level progressively & ultimately result in Biomagnification.
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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.