Environmentalmedium · Past Paper
Ground-level ozone is formed by the reaction of:
AO2 and CO2
BNOx and VOCs in the presence of sunlight
CSO2 and Water
DNitrogen and Hydrogen
✓ Correct Answer: B — NOx and VOCs in the presence of sunlight
Ground-level ozone is a secondary pollutant formed by photochemical reactions between nitrogen oxides and volatile organic compounds.
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