which of the following is air pollitant
1 pan
2 ozone
3 water vapors
4 argon
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1
Answer:
ozone
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0
Answer:
Ozone
A primary pollutant is an air pollutant emitted directly from a source.
A secondary pollutant is not directly emitted as such, but forms when other pollutants (primary pollutants) react in the atmosphere.
Examples of a secondary pollutant include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides combine in the presence of sunlight. Nitrogen oxide which is formed as NO combines with oxygen in the air; and acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water
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