Same chapter2 marksDifficulty: Easy
State two harmful effects of acid rain.
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1 markDifficulty: Easy
The gas mainly responsible for the greenhouse effect is:
- aoxygen
- bnitrogen
- ccarbon dioxide
- dhydrogen
Original Khojo Papers practice question — not from a past board paper.
Answer
carbon dioxide
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Carbon dioxide absorbs the infrared radiation re-emitted by the earth and traps heat in the atmosphere. Oxygen, nitrogen and hydrogen do not absorb infrared radiation appreciably.
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