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movement of plants, animals and diseases between the Eastern and Western Hemispheres during the age of exploration
The territory, including the region between the Mississippi River and the Rocky Mountains that the united states purchased from france in 1803
political unit or community touching the borders of the central city or touching other suburbs that touch the city
economic system in which private individuals own most of the resources, technology, and businesses, and can operate them for profit with little control from the government
The six northern states in the United States-Maine, vermont , New Hampshire, massachusetts, Rhode Island and connecticut
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