Question

Reference of air pollution​

Answer 1

Answer:

Although there are a number of important natural sources of air pollution (including forest fires and volcanic eruptions), the term is usually applied to substances released into the atmosphere as a result of human activities, which can be either deliberate (such as the continual release of gases from factory chimneys) .

Explanation:

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Answer 2

Explanation:

Although there are a number of important natural sources of air pollution (including forest fires and volcanic eruptions), the term is usually applied to substances released into the atmosphere as a result of human activities, which can be either deliberate (such as the continual release of gases from factory chimneys) ...

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