Answer:
C. Its effects stopped all advancements in science and medicine for the next two centuries.
Explanation:
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If the Federal government can perform an enumerated power without a particular law or action, then that law or action is unnecessary and therefore unconstitutional.
Answer:
John Brown opposed slavery
Explanation:
Gil Eannes after Cape Bojador in Africa.
Cristopher Columbus to Central America.
Jacques Cartier to Canada.
Bartolomeu Dias to India.
Pedro Álvares de Cabral to South America --Brazil.
Answer:
He visited the states of Southeast Asia, the coast of India, the Persian Gulf, the Red Sea, and the east coast of Africa. Zheng died in Calicut in the spring of 1433, and the fleet returned to China that summer.