sentences:  Egyptian civilization has sustained itself utilizing water management and agriculture for some 5,000 years in the Nile River valley.The Egyptians practiced basin irrigation, a form of water management adapted to the natural rise and fall of the Nile River.Since around 3000 BCE, the Egyptians constructed earthen banks to form flood basins of various sizes that were regulated by sluices to floodwater into the basin where it would sit until the soil was saturated, the water was then drained, and crops planted.