Water freezes at 32 degrees and boils at 212 degrees. There are 180 degrees between freezing and boiling because there are 180 degrees between north and south. Some people can tell what time it is by looking at the sun. But I have never been able to make out the numbers. In looking at a drop of water under a microscope, we find there are twice as many H's as O's.
Clouds are high flying fogs.
I am not sure how clouds get formed. But the clouds know how to do it, and that is the important thing. Clouds just keep circling the earth around and around. There is not much else to do. Water vapor gets together in a cloud.