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Our Environment
CBSE Class 10 · Science · 24 past questions
Topic
Biodegradable and non-biodegradable waste
2
Energy flow and the 10 percent law
1
Ozone layer depletion
1
Biomagnification and pesticides
0
Ecosystem components and balance
0
Food chains and trophic levels
0
Level
Easy
2
Moderate
0
Year
2026
2
2025
2
2024
0
2023
0
2 of 24 ·
show all
Q13
2025
Identify from the following a group containing all non-biodegradable substances.
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Q14
2025
For Questions number 17 to 20, two statements are given — one labelled as Assertion (A) and the other…
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