The air mass over this location is best described as A. cold with low humidity and high air pressure
B. cold with high humidity and low air pressure
C. warm with high humidity and low air pressure
D. warm with low humidity and high air pressure

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

your answer is a. hope this : )