Feudalism. The Middle Ages or medieval time is believed to have started with the fall of the Roman<span> Empire in 476 and to have lasted about 1,000 years until about 1450. The </span>beginning<span> of the Middle Ages is called the Dark Ages because the great civilizations of Rome and Greece had been conquered.</span>
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Answer:
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Explanation:
Answer:
A. Directly related to the number of people in the area and inversely related to the distance people must travel to access it
Explanation:
When people seek certain type o products/services, the price and quality of the product are not the only factors for consideration. How easy they could obtain those products/services are also a major factor in the decision making.
The gravity model suggested that eventually costumers will drawn to specific location to seek their products/service that they deemed as an optimal location.
Federalism- in the U.S. power is divided among state, local, and federal government.