The 67% decrease in pollution emissions despite increases in population and vehicular use is evidence of 
A) the effectiveness of governmental air quality regulations.
B) the ineffectiveness of governmental air quality regulations.
C) a long-term trend in atmospheric stability.
D) a long-term trend in radiation inversions.
Correct Answer:
Verified
Q95: Pollutant emissions from _ have been reduced
Q96: The least effective way to deal with
Q97: Trace the efforts of the national (federal)government
Q98: Major air pollutants
A)have identical sources.
B)have different sources.
C)have
Q99: Transportation is the source for 77 percent
Q101: Buildings
A)do not absorb much heat.
B)can affect the
Q102: Particulate pollution can affect the intensity of
Q103: Compare the radiation absorption and emission characteristics
Q104: Urban heat islands
A)do not spread very far
Q105: Urban particulates do all of the following,except
A)absorb
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