Earth - Air and Water

This is a really interesting picture.

The picture on the left shows what you would get if you took all the water on Earth and put it into a ball. For comparison, a picture of the Earth (to scale of course) is also presented.
The picture on the right is the same idea but for all oxygen in the atmosphere. As you can see, the total volume of water and air really doesn't amount to much relative to the size of the planet!

Whenever I think of the Earth, I normally think of a mass of water with the occasional land mass peaking out. After all, Earth is considered a blue planet because of the majority of the surface is covered by water.

However, while that is true, when you take all that water and put it into a sphere - it really doesn't seem to amount to much!