The Nile River stays so clear because it gets its water from two different places, the White Nile and the Blue Nile. The White Nile flows slowly through soft rocks, which don’t add much dirt or silt to the water. Meanwhile, the Blue Nile flows faster through harder rocks, and that makes the water look muddy at first. But when the rivers meet in Egypt, the fast-moving Blue Nile carries away most of the dirt, leaving the water really clear.
Examples
- Imagine a clean stream mixing with a muddy one, the clean part wins out in the middle.
- Like a fast river sweeping up dirt from a slow one.
- It's like mixing clear lemonade with dirty orange juice, and the clear part stays on top.
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See also
- What are rivers like as slow-moving sculptors?
- How Does a River Change the Shape of a Landscape Over Time?
- What are topographical effects?
- What is erosion?
- What causes a river to flow backward sometimes?