What kinds of similarities were there between the cultures of Nubia ans Egypt?

A few things that are similar are first they both trade things, there both powerful countries and yes there both lands in Africa; ). A few differences are the physical land, the culture government, the people, a lot of others things I'm sure if you put your mind to it you can figure out.

They are simillar because they both belived in one god and they both most likley built pyramids