A. Early in the Tang dynasty a scientific experiment helped to create what?
a globe of the world
a detailed map of China
b. a compass
d. a sundial
C.
Please select the best answer from the choices provided
A
B
ос

the best answer c

Explanation:

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The Civil War was a time of great social and political upheaval. It was also a time of great technological change. Inventors and military men devised new types of weapons, such as the repeating rifle and the submarine, that forever changed the way that wars were fought. Even more important were the technologies that did not specifically have to do with the war, like the railroad and the telegraph. Innovations like these did not just change the way people fought wars–they also changed the way people lived.