Which of the following is not a natural source of air pollution? Options: A . &nbspVolcanic eruptions and lightening discharges B . &nbspBiological decay of vegetable matter C . &nbspPhotochemical oxidation of organic matter D . &nbspNone of these

Which of the following is not a natural source of air pollution?

Question

Which of the following is not a natural source of air pollution?

Options:

A . Volcanic eruptions and lightening discharges

B . Biological decay of vegetable matter

C . Photochemical oxidation of organic matter

D . None of these

Answer: Option D

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