As soon as kublai khan, the mongol ruler who founded the yuan dynasty, chose a site for his capital city, he realized that he needed a hydraulic engineer. he found one in guo shoujing. what did kublai need guo to do for the city of beijing?

a. he needed guo to build a dam that would hold back the large lake near beijing, in case it flooded.

b.
he needed guo to design a way to route water to beijing, which had no natural waterways nearby.

c. he needed guo to design a palace that would be grander than all of the chinese emperors before him.

d. he needed guo to build windmills that could be used to ground large amounts of grain into flower.

The answer is B.  He needed Guo to design a way to route water to Beijing, which had no natural waterways nearby.

Explanation:

Guo Shoujing built a system of water irrigation and a canal for transportation in the Bejing area following orders from emperor Kublai Khan of the Yuan Dynasty.

B. He needed Guo to design a way to route water to Beijing, which had no natural waterways nearby.

Explanation:

Guo Shoujing was the engineer responsible for extending the Grand Canal to Dadu (now Beijing), which brought water to the city. Kublai Khan realized the importance of irrigation and water transportation, and wanted to design a way in which these problems could be addressed. Guo built a 30km channel from the Shenshan Mountain to Dadu. This extended the canal that linked the river systems of the Yangtze, the Huai and the Huang, bringing water and development to the city.

answer: secession

secession, as it applies to the outbreak of the american civil war, comprises the series of events that began on december 20, 1860, and extended through june 8 of the next year when eleven states in the lower and upper south severed their ties with the union. the first seven seceding states of the lower south set up a provisional government at montgomery, alabama. after hostilities began at fort sumter in charleston harbor on april 12, 1861, the border states of virginia, arkansas, tennessee, and north carolina joined the new government, which then moved its capital to richmond, virginia. the union was thus divided approximately on geographic lines. twenty-one northern and border states retained the style and title of the united states, while the eleven slave states adopted the nomenclature of the confederate states of america.

explanation:

im not sure on this one