The Egyptians are best known for their irrigation system. They used the water from the Nile river to develop an irrigation system that made possible for them to have a food surplus and develop their population.
Egypt has little annual precipitation and the Nile was the primary source of fresh water and water for agriculture.
The answer would be unruffled, which means <span>not disordered or disarranged, (</span>something as not upset during a loud discussion). Hope this helps!
