Answer:
Government Shi Huangdi conquered the warring states, unified China, and built a strong government. Government The Han Dynasty took over China and established a strong empire that lasted 400 years. Culture Life in Han China set a pattern that is still seen today.
Explanation:
They measure distance north and south of the prime meridian.
He supported them because he wanted later to make a treaty with panama to construct the panama canal.
If I remember correctly the opium wars resulted in china being figuratively split up by european powers. So, I'd go with 4.
