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Railways PYQCBT 2 2017

RRB NTPC · Question 53

Which of the following is not a cause of air pollution?

  1. Mining operations

  2. Acid Rain

  3. Agricultural activities

  4. Burning of fossil fuels

Show answer & explanation

Answer: (B) Acid Rain

Explanation

Mining, farming activities and burning fossil fuels release pollutants into the air. Acid rain is a result of air pollution (sulphur and nitrogen oxides), not a cause.