Comprehensionmedium · Past Paper

Read the passage: Air pollution is a major problem in cities. It is caused by smoke from factories and vehicles. This pollution can lead to lung diseases. It is necessary to control the emission of harmful gases. Question: According to the passage, what is a primary cause of air pollution in cities?

ALack of trees
BSmoke from factories and vehicles
CNoise from construction
DDust from roads

✓ Correct Answer: BSmoke from factories and vehicles

The passage explicitly mentions smoke from factories and vehicles as causes.

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