1.

Which of the following is not an air pollutant? A. sulphur dioxide B. sewage C. CFCs D. SPM

Answer»

B. sewage 

The harmful substances like sewage, toxic materials, silt etc., when gets mixed with water, causes water pollution. The gases like carbon dioxide, carbon monoxide, Sulphur dioxide, nitrogen dioxide and chlorofluorocarbons are the major pollutants of air.



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