alleryBurning natural gas causes less pollution than burning coal mainly because natural gas does not contain which element?
ACarbon
BHydrogen
CNitrogen
DSulphur
Answer & Solution
Correct answer: D. Sulphur
1. Coal burning releases sulphur oxide, a harmful pollutant.
2. Natural gas does not contain sulphur.
3. So burning natural gas produces less pollution.
4. Natural gas does contain carbon and hydrogen (options A and B), so those are ruled out.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 5 "Towards Green Energy", p.61_
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