Why is the sky blue?

Great infographic explaining why the sky is blue.  I had read somewhere that it was a reflection of the oceans as well.  But this is from the internet, so it must be true, right? Everything on the internet is true, right? {wink}  Ok, but seriously, I got confirmation from NASA, it's true......  You live some, you learn some.  

Why is the Sky Blue? infographic by ptvan.