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Why do some states require emissions testing?

A. to reduce air pollution
B. to reduce water pollution
C. to conserve energy resources
D. to increase fuel efficiency

User Blackhole
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2 Answers

4 votes

Answer:

a.

Step-by-step explanation:

User Foroogh Varmazyar
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5 votes
I believe it is letter A. To reduce air pollution.
User Miletliyusuf
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