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Geography caused some colonies to become centers of trade, and others to output huge amounts of crops. The Mid-Atlantic colonies used their large rivers, fertile soil and open plains for large scale farming. The crops raised here were oats, wheat, and rye. They also raised livestock.
The capitalist economic system. A capitalist economy is a for profit one, where people engage in production and business dealing (e.g. trading) in order to produce private profit (e.g. wage).
Excavating means digging a hole or channel
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