Environment & Ecology · Environmental Studies
When does air pollution typically occur?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1When undesirable changes occur exclusively in water bodies
- 2When sound levels exceed permissible limits causing discomfort
- 3When harmful substances alter the optimal composition of atmospheric components✓
- 4When the physical and chemical properties of soil degrade significantly
Correct answer
When harmful substances alter the optimal composition of atmospheric components
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