Multiple Choice
Which two emissions from engines are required to create smog?
A) HC (hydrocarbons) and NOX (oxides of nitrogen) "
B) CO (carbon monoxide) and NOX (oxides of nitrogen) "
C) CO (carbon monoxide) and CO2 (carbon dioxide)
D) HC (hydrocarbons) and PM (particulate matter) "
Correct Answer:
Verified
Correct Answer:
Verified
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