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CBSE Class 10 · Science · 24 past questions

8 of 24 · show all

1. Q12 Sample paper 2026-27

   Study the food chain given below… (with a figure)

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2. Q16 2025

   Assertion (A) : The amount of ozone in the atmosphere began to drop sharply in the 1980s.…

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3. Q17 2024

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

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4. Q19 2024

   Consider the following statements about ozone…

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5. Q20 2024

   Identify the food chain in which the organisms of the second trophic level are missing…

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6. Q22 2024

   (A) Plants → Deer → Lion…

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7. Q23 2023

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

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8. Q24 2023

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

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