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Question
Human activities are not the only cause of air pollution. There are a number of natural pollutants present in the atmosphere. Tick the natural pollutant from the options given below.
Options
Brick kilns
Forest fires
Burning of farm waste
Salt
MCQ
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Solution
Forest fires
Explanation:
Forest fires are a natural source of air pollutants (the files list volcanic eruptions, forest fires, and dust storms as natural sources), whereas brick kilns and burning farm waste are human-made sources.
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