Why does the sky appear blue

YES CHEESE

Explanation:

I'm firsT DKSNNSNS GAUCAMOLE

The sky is blue due to a phenomenon called Raleigh scattering. This scattering refers to the scattering of electromagnetic radiation (of which light is a form) by particles of a much smaller wavelength. ... Water actually appears blue due to its absorption of red light.

(I got this answer from web btw so credits to them :)

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.