Discussion :: Chemistry
- Smog is
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A.
Nothing but black smoke |
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B.
A combination of smoke and fog |
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C.
A liquid particle resulting from vapour condensation |
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D.
A solid particle, e.g., fllyash |
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Answer : Option B
Explanation :
Smog is air pollution that reduces visibility. The term "smog" was first used in the early 1900s to describe a mix of smoke and fog. The smoke usually came from burning coal. Smog was common in industrial areas, and remains a familiar sight in cities today. Today, most of the smog we see is photochemical smog.
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