First slide

Air Pollution and its Control

Question

Acid rain is caused by increase in the atmospheric concentration of:

Easy

A

O₃ and dust
B

SO₂ and NO₂
C

SO₃ and CO
D

CO₂ and CO

Solution

Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.

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