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.
The color of rivers can appear blue because of the way water molecules absorb and scatter light. Water absorbs all colors of the spectrum except blue, which it reflects back to our eyes. This can give the appearance of rivers or bodies of water being blue in color.
Rivers are typically depicted as blue on a map to differentiate them from other features like land and roads. The blue color represents water, reflecting the natural color of many rivers.
THE smaller rivers in Africa the Blue Nile
Rivers are coloured blue on most UK maps
Blue Nile, Blue Danube,
its where water is you its blue/clear
It looks blue.
Of the four rivers listed, only the Red Nile does not exist. The White Nile, Blue Nile and the Atbara Rivers all make their way into the Nile. There is a Red River, but it is located in North America.
Not all desert have rivers
Google Maps, Yahoo! Maps and British Ordinance Survey maps use a mid-blue colour for all water features (rivers, streams, lakes and the sea).
yes all rivers meander
think there in egypt somewhere