AP Environmental Scienceeasymcq1 pt
Ground-level ozone is classified as a
A.secondary pollutant
B.primary pollutant
C.greenhouse gas only
D.natural emission from plants
Explanation
Core Concept
Ozone is not emitted; it forms in the air when sunlight cooks NOx and VOCs — the definition of a secondary pollutant.
Correct Answer
Asecondary pollutant
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