Question
Q20. According to the Environmental Protection Agency (EPA), which one of the following is the largest source of sulphur dioxide emissions?
- Locomotives using fossil fuels
- Ships using fossil fuels
- Extraction of metals from ores
- Power plants using fossil fuels
Answer: 4
Detailed Explanation
Explanation:
- Burning coal releases high amounts of sulfur dioxide into the atmosphere.
- Power plants, steel manufacturing, and cement production are major contributors.
- The burning of fossil fuels (especially coal in power plants) is the largest source of sulphur dioxide emissions globally.
- According to NASA & UNEP, India, China, and Russia are among the top emitters of SO₂ due to heavy reliance on coal-based power.