the correct answer is Option 4: It is one the causes of acid rain.
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Option 1: It is caused by atmospheric pollution. True – Smog results from pollutants like nitrogen oxides (NOâ‚“), volatile organic compounds (VOCs), and particulate matter in the atmosphere.
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Option 2: It is also called smoky fog. True – The term "smog" is derived from "smoke + fog", originally referring to industrial air pollution.
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Option 3: It is harmful for human health. True – Smog can cause respiratory problems, eye irritation, and worsen conditions like asthma.
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Option 4: It is one of the causes of acid rain. Not true –
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Smog and acid rain are both caused by air pollution, but smog itself does not cause acid rain.
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Acid rain is caused specifically by sulfur dioxide (SOâ‚‚) and nitrogen oxides (NOâ‚“) reacting with water vapor in the atmosphere — not by smog directly.
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