AP Environmental Scienceeasymcq1 pt
NOx emissions come primarily from
A.high-temperature combustion in engines and power plants
B.refrigerator leaks
C.soil bacteria
D.volcanic ash
Explanation
Core Concept
Nitrogen and oxygen in air combine at combustion temperatures, making NOx the byproduct of burning anything hot — especially vehicles.
Correct Answer
Ahigh-temperature combustion in engines and power plants
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