The great rift valley was a remarkable evolution for apes.This was the place where human evolution started. In the rift valley, the apes adapted to diverse environments which had a major impact in the evolution of the humankind.There are various fossils that have been collected stating the sedimentation of the rivers in the Eastern Africa.
Well I don't see any options so my guess would be:
Don't pick any opinions because if your writing a research paper then you should have your paper based off of facts and things you have seen off of the internet.
