Answer: b. False
The Maya were NOT the first Americans to use horses and wheeled carts.
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Europeans competed for power either through acquisition of colonies or building up its industries. When their industries were strong, they would strengthen their armies as well. If that was not enough they would form alliances with other countries to protect their interest.
the Legislative branch (specifically the Senate) must ratify treaties. This check on the power of President is part of the system of checks and balances.
