T he Nile is the longest river in the world, flowing almost 7,000 kilometres from the Ethiopian highlands and Lake Victoria, through the desert lands of Sudan and Egypt to the Mediterranean Sea.
A large delta has developed at the mouth of the river as a result of deposition of huge quantities of silt as the river slows on the flat coastal land. The denser saltwater of the Mediterranean Sea reduces the river’s flow, encouraging deposition, and the fact that there is no tide means sediment is not removed. In fact, the delta extends outwards into the sea.
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