Whats caused by natural sources, such as dust and smoke, and human sources, such as gas powered cars and trucks?

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Geography

8 June, 15:08

Whats caused by natural sources, such as dust and smoke, and human sources, such as gas powered cars and trucks?

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Maliyah Humphrey · Answer 1

Natural sources are probably those coming from pollution. One example is the smoke and ash rain created by volcanic eruptions. Human sources are those made from humans (of course). One example is acid rain which is a result of different chemicals evaporated into atmosphere.