Photochemical smog is a secondary pollutant and it is generally formed:
Correct answer: B. Around mid day in summer months
- A. In the morning of winters
- B. Around mid day in summer months
- C. In rainy day
- D. When concentration of particulate matter is very low
Explanation
To form Photochemical smog, the presence of sunlight (high temperature) requires when nitrogen oxide reacts with volatile organic compounds.
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