Moderate

Acid rain is mainly caused by emissions of __________ in the atmosphere?

Correct answer: D. Sulfur Dioxide and Nitrogen Oxide

  • A. Sulfur Dioxide and Potassium Nitrate
  • B. Sulfur and Charcoal
  • C. Nitrogen Oxide and Potassium Nitrate
  • D. Sulfur Dioxide and Nitrogen Oxide

Explanation

Sulfur dioxide and nitrogen oxides react with atmospheric moisture to form sulfuric and nitric acids, which fall as acid rain. Potassium nitrate is not a principal atmospheric emission responsible for this process.

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