How do you know the sky is blue?

Answer 1

Actually, the coloring in the sky that you remark is a consequence of light rays existence distributed aside air and anything in it. The beams of light with the yearner wavelengths, so much as reddish and yellowish, be given to motion more well through the atmosphere, while the rays with the abbreviated wavelengths, like blueish and indigo, tend to be distributed much casually. These much easily spread truncated light rays are what transfer the sky its bluish coloring. The color discharged by the physical phenomenon of gaseous state in the ambiance is what origination the atmosphere to be the color it materializes. The anti-fouling ozone layer which is broader in whatsoever places than it is in others, indicates blue when unprotected to the suns radiation syndrome. So ozone flatulence verbalized as O3 is trustworthy in astronomic component part to the blue sky. The dust molecules referenced in the former paragraph are responsible for the individual hues and colors we see such as the red sunsets.

So, in conclusion, you know the sky is blue by its molecules and light beams by the exposed ozone layer.