According to the Environmental Protection Agency (EPA), which one of the following is the largest source of Sulphur Dioxide emissions?

According to the Environmental Protection Agency (EPA), which one of the following is the largest source of Sulphur Dioxide emissions?

(a) Locomotives using fossil fuels
(b) Ships using fossil fuels
(c) Extraction of metals from ores
(d) Power plants using fossil fuels

Correct Answer: (d) Power plants using fossil fuels

Explanation:
Power plants that burn fossil fuels, especially coal, are the largest sources of sulfur dioxide (SO2) emissions. The combustion of fossil fuels in power plants releases a significant amount of sulfur dioxide into the atmosphere.
Possible Sources: Environmental Protection Agency (EPA) reports and environmental science references.