It helped them transport things easier i think
Federalism, or the dual roles of state and national government, is part of the system of sharing power in government. Within the system of separate powers, however, the framers of the Constitution provided for "national" or "federal" supremacy. This meant that the national government was supreme in regards to many issues in relation to state governments, as enumerated by the Constitution.
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B. European countries claimed and fought over land already inhabited by Native Americans
Answer:B And D
Explanation:
I did the thing and both were right
Answer:
A. It was caused by the Cambodian invasion of Vietnam. (I think)
Explanation: