Name some of the spanish speaking countries in north america

Costa Rica, Cuba, The Dominican Republic, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Puerto Rico, The United States has no official language, but since Spanish is widely spoken there, it is sometimes counted among the Spanish-speaking countries.

Explanation:

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