I think that they will have a more futuristic touch and if you have seen the movie After Earth something like that
"<span>a. The end of the last ice age and the resulting climate change" would be the best option from the list, since the range and size of most of the animals that were available before did not change greatly.</span>
The Indians because they didn't want the white man there
There are many geographic effects that can be seen from the colonization of Africa, but the most important one is that the colonizers drew random lines on a map to separate the tribes.