While we all know that there is a shit ton of water on this planet - 3/4ths of the earth is covered in it - and there is also a lot of air, when you
compare them to scale, it puts things in perspective. Just like a ball of pizza dough becomes cardboard thin when rolled out, so goes it with our elements as well. In fact, close to 90% of the atmosphere exists in only the 7 closest miles to the surface of the earth.