write a conclusion on smog

Solution:

Smog is a combination of 'smoke' and 'fog'. Smog is grimy, dirty, smelly and foul. It is more dangerous than smoke. When pollutants from the automobiles, factories etc are released into the atmosphere, under certain conditions, these particles remain suspended in the air. This suspended layer of pollutants forms smog. It contains toxic mixture of air pollutants like sulphur dioxide, nitrogen oxides, ozone and other volatile organic compounds due to which it is harmful and  causes serious problems to senior citizens, children and people with heart and lung problems. Smog leads to emphysema, bronchitis and asthma.
 

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