"<span>They found the soil unusable, and they had to rely on fishing and hunting for food" is generally true, although some people were able to soil rich enough for farming. </span>
During the Taiping Rebellion, the peasants rebelled. It was mostly a civil war which killed scores of people (twenty million people approximately). The movement was a millenarian movement (meaning it occurred because of religious ideology). The movement was led by Hong Xiuquan who claimed he was Jesus' younger brother.
The answer among these options that describes a primary cause of the Neolithic Revolution is C) the extinction of animals that people hunted.
Our constitution created a system of checks and balances to insure that no one branch of government becomes too strong and be able to control all of the government
hope this helps