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CBSE Class 10 · Science · 24 past questions

4 of 24 · show all

1. Q13 2025

   Identify from the following a group containing all non-biodegradable substances.

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2. Q14 2025

   For Questions number 17 to 20, two statements are given — one labelled as Assertion (A) and the other…

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3. Q15 2025

   The percentage of solar energy which is not converted into food energy by the leaves of green plants in a…

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4. Q16 2025

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

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