Answer:
In Economics, the want satisfying power of a commodity is called “utility”. Utility is the capacity of a commodity to satisfy particular human want.
Answer:
State Government Under the Tenth Amendment to the U.S. Constitution, all powers not granted to the federal government are reserved for the states and the people. The U.S. Constitution mandates that all states uphold a "republican form" of government, although the three-branch structure is not required.
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As far as I know, it was the Chinese - there is evidence they had movable printing press as early as in 12th century.
In Europe the movable print was devised by Johannes Gutenberg in Germany, Mainz.
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