The answer is letter A. The Clear Air Act would be a reason for the Environmental Protection Agency or EPA to regulate car emissions. EPA sets the emission standards under the said rule or regulation and this also covers the green house gas emissions.
Its very open plains land and not sorounded by any mountains
Answer:
People in America integrate the European Mammals to their Economic activities.
Explanation:
Cattles and Horses are among the large Mammals that introduced by the European in American region, and they change the way people in America conduct their daily activities.
For example, Farmers relied by only using tools to fertilize their land. After Cattles exist, they integrate their farming tools so it can be pulled by these cattle's and make the while process a lot faster.
We can also see this in the distribution process. Without horses, the American people cannot pulled off carriage bring their goods and sell it to a far location.
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