What u. S. President was known as the great communicator?

Ronald Reagan

Explanation:

Ronald Reagan was great public speaker and earned him the moniker the "Great Communicator." the main think that made him a great communicator is his determination and ability to educate his audience. He also used pictures, graphs, and charts while we talked in a public meeting or etc.

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