What role did the geography of sub-saharan africa play in its history?

(multiple choice)
escarpments aided european colonization efforts.
european countries colonized the region to access its natural resources.
natural resources brought power and prosperity to early kingdoms.
sub-saharan ecosystems couldn't support subsistence farming.

the correct answers are:

a - pacific plate;

it is the biggest oceanic tectonic plate. surrounded on all sides by continental tectonic plates, it is submerging and gradually becoming smaller and smaller.

b - north american plate;

huge continental plate, occupying big portion of the northern hemisphere.

c -eurasian plate;

alongside the north american plate, it is one of the two dominant continental plates in the northern hemisphere.

d - indian plate;

a small continental plate, that has been part of gondwanaland initially, but after the break up of it, moved towards northeast and pushed into the eurasian plate that was once part of laurasia.