Which of the following is true of Earth's landmasses? A. They were formed by earthquakes
B. They are the densest part of the crust
C. They are the upper part of the crust
D. They are made of a single tectonic plate

d i land to created the ptejitewe vikylhu

C. they are the upper part of the crust

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