Since the Constitution's formal amendment process involves both the national government and state governments, the process A. gets voters directly involved B. demonstrates the principle of federalism C. is based on an unwritten interpretation of the Constitution D. demonstrates the principle of judicial reveiw

(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.

d. dr. francis collins

spread of christianity

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