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प्रश्न
Explain with examples the difference between the primary and secondary pollutants.
उत्तर
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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संबंधित प्रश्न
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| Column 1 | Column 2 | ||
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| 7 | Carbon monoxide | g | Chlorofluorocarbons |
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