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Question:

Peoxyacetyl nitrate (PAN), an eye irritant is produced by: Photochemical smog, Organic waste, Acid rain, or Classical smog?

Photochemical smog

Classical smog

Organic waste

Acid rain

Solution:

Photochemical smog produce chemicals such as formaldehyde, acrolein and peroxyacetyl nitrate (PAN).