The variable atmospheric gas that is the source of all clouds and precipitation and that functions in warming and cooling processes in the atmosphere is

Water vapor is responsible for the formation of clouds and precipitation. It also performs a vital role in the cooling of the atmosphere. Water vapor that is evaporated from the surface of the earth by the heat generated by the sun eventually returns in various forms of precipitation including snow or rain.

the precambrian aged rocks could be found in australia. australia is a region that has a lot of ancient civilization history from million years ago. in this region, there are a lot of recognizable fossils buried in its land which is considered a precambrian-aged rocks