Answer:
The idea that humans evolved in Africa can be traced to Charles Darwin. In his 1871 book The Descent of Man, Darwin speculated that it was “probable” that Africa was the cradle of humans because our two closest living relatives—chimpanzees and gorillas—live there.
Explanation:
The main <span>connection between the Great Wall and the Mongols was that the Great Wall was erected by the Chinese in an attempt to keep the Mongols out of China (this largely failed). </span>
C is always the answer when your in doubt
Helped with communications between Natives & Spanish