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🌱 Environment & EcologyUPSC 2011Sustainable Development

Consider the following:1. Carbon dioxide2. Oxides of Nitrogen3. Oxides of SulphurWhich of the above is/are the emission/emissions from coal combustion at thermal power plants?

a1 only
b2 and 3 only
c1 and 3 only
d1, 2 and 3
✓ Correct answer: d) 1, 2 and 3
ExplanationEmissions of all the above-mentioned gases i.e. Carbon dioxide, Oxides of Nitrogen and Oxides of Sulphur take place from coal combustion at thermal power plants.Gas Sources Carbon dioxide (CO2) Burning of fossil fuels, deforestation Oxides of Sulphur Burning fossil fuels, Smelting ores, Volcanic eruptions, Vehicles, etc Nitrogen oxides (N2O) Burning of fossil fuels, fertilizers; burning of wood and crop residue.Carbon Monoxide (CO) Iron ore smelting, burning of fossil fuels, burning e-waste.113

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