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CBSE Class 10 · Science · 24 past questions

Topic Food chains and trophic levels 2 Biomagnification and pesticides 1 Ozone layer depletion 1 Biodegradable and non-biodegradable waste 0 Ecosystem components and balance 0 Energy flow and the 10 percent law 0

Level Easy 0 Moderate 1

Year 2026 0 2025 1 2024 1 2023 0

1 of 24 · show all

Q19 2024

Consider the following statements about ozone…