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Subjects
Science CBSE
Class 9
Natural resources
Textbook questions

4. Intext questions IV

Exercise condition:

2 m.

List all human activities that you think would lead to air pollution.

Excessive use of automobiles
Forest fires
Excessive usage and burning of fossil fuels
Excessive industrialization
Burning of dry gross
Burning woods
Excessive sounds from vehicles
Excessive usage of chlorofluorocarbons
Excessive mining and mineral refining
Unburned carbon particles

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