The Nile River is one of the longest River in the world. It stretches across 10 countries in North Africa; Tanzania, Burundi, Rwanda, Democratic Republic of Congo, Kenya, Ethiopia, Eretria, Sudan and Egypt.
Wikipedia reports, "The Nile has two major tributaries, the White Nile and Blue Nile. The latter is the source of most of the water and fertile soil. The former is the longer. The White Nile rises in the Great Lakes region of central Africa, with the most distant source being as-yet undetermined, and located in either Rwanda or Burundi. It flows north through Tanzania, Lake Victoria, Uganda and southern Sudan. The Blue Nile starts at Lake Tana in Ethiopia at 12°02′09″N 037°15′53″E / 12.03583°N 37.26472°E / 12.03583; 37.26472 and flows into Sudan from the southeast. The two rivers meet near the Sudanese capital of Khartoum."
85% of Egypt's portion of the River Nile water being used for agriculture the rest is put to industrial use, drinking and other needs. 96% of Egypt's water comes from the Nile. With the growth in population and growing demand of water, every drop must be saved.