The best answer i see is C) The natural features in an area include mountains, deserts, and oceans because these were all aspects of keeping native people from wondering to far.
<u><em>Developing</em></u> sounds about right.
The cotton gin made it easy for slaves to separate seeds out of the cotton. However, it it increased slave usage all over. It actually increased the use of slavery. The cotton gin just made one part of a slaves job quicker and easier.
Answer:
Incas, Babylonians, Egyptians, Greeks, Romans, Utes....
Explanation: