The emperor did many things to unite China. Including building The Great Wall, standardizing currency and weight measures and building roads from and to many places inside the country.
That being acknowledged, there are only two answers that represent those deeds. The correct answers are:
B. built network of roads and canals
C. standardized currency
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Nat Turner's revolt occurred in Southhampton, Virginia. His goal was to initiate an uprising and gather enslave people to take the county seat at Jerusalem.
Answer:
By the late 1960s, US political and military leaders got convinced they could not win the war by any means. The war would extend indefinitely - an unacceptable option - and the Communist North Vietnamese were determined to resist as long as it was necessary, despite the horrendous suffering and destruction; actually this is what the Vietnamese have done throughout their history against foreign occupiers since ancient times. The exorbitant financial cost of the war was also a major headache for the government. And there were the rising numbers of American casualties, a fact that was politically negative. Another major factor was the powerful peace movement in the USA, many people were opposed to the continuation of the war, social support for US involvement in Southeast Asia wasn´t strong. The US could not win that war.
Explanation:
B. Samuel Morse
C. Isacc Singer
D. Eli Whitney
Samuel Morse invented the telegraph.
The Ottoman Empire was an important place for all leaders because of the speed at which it spread and the power those leaders had.
Hope this helped!! ;-)