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Chemistry Medium PPSC Uploaded: 04 Sep 2026

What is the main cause of acid rain?

  • A Sulfur dioxide and nitrogen oxides
  • B Methane
  • C Carbon dioxide
  • D Oxygen
Correct Answer: Option A — Sulfur dioxide and nitrogen oxides
Explanation:
Acid rain forms primarily from sulfur dioxide and nitrogen oxides released by burning fossil fuels, which react with atmospheric water vapor to form sulfuric and nitric acids that fall as precipitation.
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MCQ Details
SubjectChemistry
DifficultyMedium
Exam Typesppsc
CorrectOption A
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