The floodplain of the nile river in egypt is lush and fertile, but just a few miles away is arid desert. this is an example of

This is a clear example of aerial differentiation. This is a great example of it because while one part is full of fertile land where crops can grow an people historically built a civilization, the desert is completely dry and there's no water or rain and nothing can grow in it.

A, c, and d are the answers