What is smog ? Define
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It is a combination of smoke, fog and fumes released from homes factories and auto mobiles. When sunlight falls on stagnant air, under low humid conditions in the presence of pollutants such as nitrogen dioxide, sulphur dioxide, smog is formed.
Effects : cough, wheezing in children, asthma, sore throat, reduces visibility.
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The suspended particles like unburnt carbon particles and hydrocarbons mix with smoke and fog in the atmosphere, especially in the cold weather to form smog which results in a lowered visibility.
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