In cities, the contribution of cars and other vehicles to carbon monoxide in the air is _______%.
A) 15
B) 25
C) 50
D) 75
E) 90
Correct Answer:
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Q8: Of the following common air pollutants, which
Q9: The single most important development for decreasing
Q10: Ozone is a pollutant when found in
Q11: Smog is made up mostly of
A) ozone.
B)
Q12: Which of the following statements about volatile
Q14: Carbon monoxide is an important pollutant because
A)
Q15: Acid rain is a severe environmental and
Q16: Particulate matter is regulated because
A) particles greater
Q17: Which of the following statements about lead
Q18: In 1970, the financial costs of air
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