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CBSE Class 10 · Science · 24 past questions

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1. Q17 2024

   Use of pesticides to protect our crops affect organisms at various trophic levels especially human beings.…

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2. Q23 2023

   How do harmful chemicals get accumulated progressively at each trophic level in a food chain ?

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3. Q24 2023

   Use of several pesticides which results in excessive accumulation of pesticides in rivers or ponds, is a…

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