CES - Certified Environmental Scientist

What is ground-level ozone and how is it formed?

A secondary pollutant formed when nitrogen oxides and volatile organic compounds react in sunlight Ozone naturally released from the ground during earthquakes A primary pollutant emitted directly from car exhaust A beneficial gas that protects against UV radiation at ground level

Correct Answer:

A secondary pollutant formed when nitrogen oxides and volatile organic compounds react in sunlight

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