Gujarat BoardEnglish MediumSTD 9ScienceNatural Resources2 Marks
Question
Explain what is smog. Give its effects.
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Answer
Smog is a photochemical haze caused by the action of solar ultra violet radiation on atmosphere polluted with primary pollutants such as hydrocarbons and oxides of nitrogen from automobile exhaust. It reduces visibility and is highly suffocating and toxic to humans, animals and plants.
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