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Are all rivers blue?

Answer:
no, the apparent blue color is actually the reflection of the sky in the water, if the water is clean the color of the sky will be reflected, blue or gray on a gray cloudy day, dark on a moonless night, silver reflecting the moonlight at night. Silt, alge, mud or other material in the water can also affect the color. Green Bay and the river flowing into in Wisconsin are in fact green from the green alge at certain times of the year. Its easy to see a color difference where two rivers meet and one is clean and one is slit laden.
Contributor: Frank
First answer by Frank Atkinson. Last edit by Frank Atkinson. Contributor trust: 2 [recommend contributor recommended]. Question popularity: 1 [recommend question].

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