Smog is a kind of air pollution, which is a mixture of smoke and fog in the air. Smog is composed mainly of tropospheric ozone, primary particulate matter such as pollen and dust, and secondary particulate matter such as sulphur oxides, volatile organic compounds, nitrogen oxides and ammonia gas.
Causes of smog :-
Smog is a common pollutant in places having __________________ | |||
Right Option : B | |||
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Which of the following are correct ? (a) Use of coal as fuel in heating discharge high concentrations of sulfur oxides in the atmosphere and hence is a cause of smog. (b) Emissions of gases from the combustion in cars, trucks, buses, motorbikes, and boats are the chief contributors of smog formation. (c) Smog can also occur due to construction activities. | |||
Right Option : D | |||
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Smog is a kind of ______________________ which is a mixture of smoke and fog in the air. | |||
Right Option : A | |||
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