Volcanic eruptions are an important natural source of ____.
A) benzene
B) ozone
C) sulfur dioxide
D) carbon monoxide
E) chlorofluorocarbons
Correct Answer:
Verified
Q33: What gas is produced naturally in the
Q34: The formation of _ begins when ultraviolet
Q35: Which of the following is not a
Q36: An air quality index value of 35
Q37: The most abundant volatile organic compound is
Q39: When water vapor condenses onto suspended air
Q40: When chlorofluorocarbons are subjected to ultraviolet radiation,
Q41: The carbon dioxide occurring naturally in the
Q42: On clear, cold winter nights, cities tend
Q43: Pollution is most severe when a _.
A)cold
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