Explain with examples the difference between the primary and secondary

1.	Explain with examples the difference between the primary and secondary pollutants.
Answer» Primary pollutants are directly mixed with atmosphere e.g. smoke, ash, fumes, dust, CO₂ Sulphur dioxide Methane, Benzene etc. Secondary pollutants are created by automobiles e.g. Nitrogen oxides, hydrocarbons etc, which are more toxic than their original elements.

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