The Slave Trade is the industry that grew with slavery in the United States.
The answer is :A.The federal government lost power over the states through the policy of "new federalism."
I think it's B. New taxes placed on the clergy. Both individuals didn't want the other controlling them. But Philip IV of France taxed the clergy anyways?
Narrowest point of land along Central America and the bodies of water helped as well
Panama Canal
War and the space race