Why is the sky blue?

Answer 1

The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air.

However, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue.







As you look closer to the horizon, the sky appears much paler in color. To reach you, the scattered blue light must pass through more air. Some of it gets scattered away again in other directions. Less blue light reaches your eyes. The color of the sky near the horizon appears paler or white.

Answer 2

The sky is blue partly because air scatters short-wavelength light in preference to longer wavelengths. Where the sunlight is nearly tangent to the Earth's surface, the light's path through the atmosphere is so long that much of the blue and even yellow light is scattered out, leaving the sun rays and the clouds it illuminates red, at sunrise and sunset.

Answer 3

The sky is blue because of Rayleigh scattering.

Answer 4

Because of the outer electron shells of the oxygen atom. The energy the give off when they change state is the correct frequency for "blue"

Answer 5

The sky, apparently, has no colour.
It is so because of the sunlight we get.

Answer 6

because it reflects the water and the water is blue.

Answer 7

cause it reflects its color from the oceans or sea, as we all know that they are blue

Answer 8

Actually, its every color BUT blue...

Answer 9

why r u asking such a piss question
ask yourself why u feel a draft between
your ears

Answer 10

because blue fits it perfectly...