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Question

Which of the following are sources of air pollution?

A. Vehicles
B. Dams
C. Oil refineries
D. Mining industries


A

A & B

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B

A, C & D

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C

A, B & C

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D

A, B, C & D

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Solution

The correct option is B

A, C & D


Vehicles, oil refineries and mining industries emit smoke and other harmful gases which damage our atmosphere. Thus, these contribute to air pollution. Dams store water and play no part in polluting the air.


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