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Water is faint blue. Although water appears clear in small quanities (like a glass of water), the blue color becomes visible the more water we look through. Thus, deep lakes and seas are bluer than a shallow river.
Other factors can affect the color we see:
1.Particles and solutes can absorb light, as in tea or coffee. Green algae in rivers and streams often lend a blue-green color. The red sea has occasional blooms of red Trichodesmium erythraeum algae.
2.Particles in water can scatter light. The Colorado river is often muddy red because of suspended reddish silt in the water. Some mountain lakes and streams with finely gound rock, such as glacial flour, are tourquise. Light scattering by suspended matter is required in order that the blue light produced by water's absorption can return to the surface and be observed. Such scattering can also shift the spectrum of the emerging photons toward the green, a color often seen when water laden with suspended particles is observed.
3.The surface of seas and lakes often reflect blue skylight, making them appear bluer. [[[ Montana reflection.]]] The relative contribution of reflected skylight and the light scattered back from the depths is strongly dependent on observation angle.
cuz of the blue whale duh! like everybody knows that!
It is blue when it reflects the blue sky.
I've seen it look grey and even black.
the water isn't really blue...it's just the refection of the sky.
Because god made it that way.
Sunlight is made up of all the colors of the rainbow: red, orange, yellow, green, blue, and violet. Some of the sunlight is reflected off the surface of the water, reflecting the color of the sky. Some of the sunlight penetrates the water and is scattered by ripples and particles in the water (this tinges the appearance of the ocean with the color of the particles). In deep water, much of the sunlight is scattered by the oxygen in the water, and this scatters more of the blue light.
Because water is very slightly blue, so when there is a lot of it, it looks blue.
refelction
chemicals caused by comets hitting the earth around 4.5 billion years ago mixed to form millions of tons of blue nutrients that was rich in oxygen which is why fish can breathe through gills the sky is blue because the light bounces off of the ocean and into the sky and is eventually blocked and trapped into the atmosphere
p.s. chemicals: hydrogen, oxygen, carbon monixide, dioxide, very basic gasses and fluids
to simply say, it is only the reflection from the environment and surroundings.
*to find yourself that the sea is colorless, go into the middle of the sea and put some of it in a glass. see yourself if the color is blue or not.
its not. its the reflection from the sky. if the sky was purple the water would be purple
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