Answer:
Cities begin to fail from economic decline, usually resulting from war, debt, or lack of production and work force. Population decline affects a large number of communities, both communities that are far removed from and deep within large urban centers.
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The Han Empire quickly broke down as a series of warlords fought each other for control. One, Cao Cao, who had possession of the young emperor Xian, tried to unify China, but ultimately failed. After Cao Cao died in 220 CE, the emperor Xian was forced to give up his position, officially ending the Han Dynasty.
The answer is astronomer Galileo Galilei
Generally speaking, the chief executive is a member of the legislative branch in a "unitary form of government", since in this government there is only a single governing body.
<span>During the Cold War, the Soviet Union's main concern was that the United States was working to destroy the Soviet Union's way of life. They believed the US was working hard at it so the Soviet Union worked to build their military to match NATO and America to deter any military action.</span>