APFIVE VOC Emissions and Photochemical Smog
Which of the following best explains why the formation of photochemical smog is exacerbated on hot summer days in urban areas with significant tree cover?
A
Higher temperatures increase VOC emissions from both trees and anthropogenic sources
B
Sunlight decreases the volatility of organic compounds
C
Urban heat islands reduce photochemical reactions
D
Trees absorb nitrogen oxides but release carbon monoxide
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