They came from Southern and Eastern Europe.
Answer:
C, and E
Explanation:
C and E are definite answers and A and B are definitely not. I suspect D isn't either but in one phase of the Korean war UN troops which were largely American pushed the North Koreans back across their own border. However I would stick with C and E.
Answer:
Early humans fled South, people adapted by using fire and living in caves, and glaciers covered massive areas of land.
Explanation:
The ice age is the reason why people populated America, as the ocean level then was lower than it is today so early humans used a bridge to get across. There were animals such a mammoths in this time which were used for clothing and food, even if they were scarce.
Time zones first came about by that American railroads maintained many different time zones during the late 1800s. Operators of the new railroad lines needed a new time plan that would offer a uniform train schedule for departures and arrivals. Four standard time zones for the continental United States were introduced on November 18, 1883.
