it's mountains and plains and hills
The Western and Eastern boundaries were not very strict defined: it was the desert, as the Egyptian civilization run along the Nile: there was no farming and no life away from the Nile.
To the North, Egypt was restricted by the Meditteranean.
To the south the border was moving, also by manner of wars. They were often set on the cataracts, as they're impassable by boat and easy to defend.
Answer:
They impede or prevent the victim of racism from achieving his or her full potential as a human being. They impede or prevent the victim of racism from making his or her fullest contribution to society.
I think the answer is they were competing for land and gold, but I am not 100% sure.
By trade, as people came over from other parts of the world, the muslims spread islam to the traders who came to arabia, they traded nice rugs and silks and such with other countries who were there.