Answer: C. The development of binary numbers, the basis for computer code.
<span>The 250 years between 475 and 221 BC is called the Warring States Period because the region of the Zhou Dynasty was divided between 8 states. These states had frequent wars until 221 BC when Qin conquered them all. The fighting was sometimes fierce.</span>
Answer: On the last resort, is the only circumstance the United States can use force to stop a conflict within a member country.
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Because they had many ways of doing things and were a very intelligent society.
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