Why is the sky bule and for what?

Question

I don't get it all ways bule don't they konw there more color

Answer 1

http://www.sciencemadesimple.com/sky_blu...

Answer 2

The sky is blue because the gases that compose our atmosphere scatter the blue portion of the visible light spectrum the best.  It is not for a specific purpose, it is just that way.

Answer 3

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.

Answer 4

This is the way God made it'

ask him lol