why sky and oceans look blue ?

Answer 1

The sky appears blue because of the light from the sun is scattered by small particles in the atmosphere.The amount of scattering depends upon the wavelength .Accordingly the blue light which has the lowest wavelength in the solar light spectrum is scattered the most.So the sky looks blue.This also explains why the sky is red at sunset.The light has to travel through more atmosphere before it reaches us, at the time of sunset.So the blue light is completely scattered away by that time and only the red light remains.
The oceans appear blue because of the reflection of light from the sky.However,the colour of sea and lakes depends upon impurities dissolved in the water to some extent.Water molecules and many dissolved substances such as iron and copper salts in water,absorb some red and orange frequncies more strongly than the rest of the spectrum.The residual light therefore looks green to blue.Blue refracts and scatters more strongly than green as seen from above the water.So the ocean also look blue.
Sometimes the depth of the sea or lake play a part in deciding the colour.In shallow waters, if the sea bed is green,then green will dominate and sea colour at that place may be greenish.

Answer 2

The sky is blue due to droplets of water reflecting off of a beam of light and a rainbow in space. The ocean is blue because the ocean reflects the sky.

Answer 3

The sky is blue because oxygen absorbs and scatters other colors more efficiently, leaving blue predominant. Water is blue because. . . hey! Water isn't blue! My water bottle is clear! Water looks blue because it reflects the sky. Notice that it's not blue on a cludy day.

Answer 4

cuz,,i send somebody to pain all that,,is my favorite color