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Which of the following is considered to be an air pollutant that is reduced by the use of catalytic converters in automobiles?

A. sulfur oxides
B. nitrogen oxides
C. oxygen
D. carbon monoxide
E. carbon dioxide

User KoemsieLy
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2 Answers

5 votes
D is the correct answer
User Cesia
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5 votes
E. Carbon monoxide is the correct answer
User Ddilsaver
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