After reaching North America, humans migrated to South America.
Answer:
I believe the answer would be D higher temperatures and more evaporation.
Joseph Stalin was the most important person of the formation of the Soviet Union
Answer:

Explanation:
Given:

Required:
Coordinates of the Midpoint of HX
Solution:
Midpoint (M) of HX, for
is given as
.
Let 

Thus:

Convert to improper fractions





The Statue were made from Volcanic Ash from the Rano Raraku Volcano
But nobody knows who made them...
Hope this helps!!