Official Answer Key & Detailed Solution
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Correct Answer: Option (D) — Power plants using fossil fuels
Concept & Option Breakdown
Standard Reference VerifiedAccording to the US Environmental Protection Agency (EPA), the largest source of sulfur dioxide (SO₂) emissions into the ambient atmosphere is the combustion of fossil fuels (primarily coal) at power plants and other industrial facilities, accounting for the vast majority of total sulfur dioxide emissions.
Thermal power plants burning sulfur-rich coal represent the single largest stationary industrial source of global SO₂ emissions.
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