Answer:
B. determine exact locations
Explanation:
Radar has two basic uses underway: position fixing or confirmation which is called piloting and collision avoidance.
(I think.)
China had a dynasty for awhile and the other person is wrong
There was actually three, United States of America, Soviet Union, and United Kingdom.
American, French and Industrial revolution
The American revolution in the early half of the 18th century as well as the french revolutions were important ears in history that ushered in an era of democratic governments and liberal societies. The industrial revolution was characterized by a radical growth in industries that begun in Great Britain.