The image below is of stratocumulus clouds. These clouds are cumulus clouds which means they are piled up and lumpy. The strata comes from the low level cloud classification which means they have a base of less than 2000 meters. 

The clouds in this picture (below) are called fair weather cumulus which means they are not clouds that collect precipitation before a storm. They are also cumulus because they are lumpy and piled up.

In this photo there is radiation fog which means the fog is close to the ground. When the ground chills air by conduction, dew point is reached and fog forms right above the ground. This is hazardous because it creates a thick, hazy air that prevents clear visibility especially while driving. 

In this photo (below) shows one state of water and that is liquid. In the ocean water is in its liquid form, but from heat the water turns into water vapor and evaporates into the air and forms clouds. This water vapor is gaseous and mostly invisible and compressible therefore it can be in any space like water, but is more compact.