Whats the meaning of language

The meaning of language in my OPINION is for cultures and different races to have a diverse way of communication. Written and spoken language is used for many different reasons. The primary uses of language are informative, expressive, and directive in nature. Language is used to reason, to express ideas, argue a point, provide directions, and much more  

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