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Over the past 40 years in the United States, the number of vehicles on the road has

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Over the past 40 years in the United States, the number of vehicles on the road has

Over the past 40 years in the United States, the number of vehicles on the road has
A) increased, the number of vehicle miles has increased, and the pollution per car has increased.
B) increased, the number of vehicle miles has increased, but the pollution per car has decreased.
C) decreased but the number of vehicle miles has increased, and the pollution per car has increased.
D) decreased, the number of vehicle miles has decreased, and the pollution per car has decreased.

Textbook

Environmental Science: Toward A Sustainable Future

Edition: 12^th

Authors: Wright, Boorse

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