Answer:
The prefix hetero- comes from the Greek word, héteros, and means "other, different". It is the exact opposite of the meaning of the prefix homo-.
I believe that it is Olmec.
It has good soil and a mild climate.
There is a large period of time in which the French and Portuguese colonized Africa. The natives took on those languages, which influenced the culture.
It should be true as exactly 7.52% is arable land which rounds up to 8%