Middle East news
What's that silt and where it come from?
For centuries the Nile's waters would rise in the spring. The swollen river carried silt or small particles of rich soil. When it reached Egypt the Nile flooded its banks. As the floodwaters withdrew the silt was left behind making the land better for farming. Today dams and channels control the rivers flow for use in irrigation and in generating electric power.
Where that water go?
In the 1900s the government built pipelines to carry underground water from the desert to coastal areas.
Wheres the rain?
Because of the generally dry desert climate Saudi Arabia has no rivers or permanent bodies of water. Highlands dominate the southwest however and rainfall there irrigates fertile croplands in the valleys. Water sometimes comes from seasonal wadis or dry riverbeds filled by rainwater from rare downpours. The desert hold oases.