What are the three main parts of the geosphere?

a. atmosphere, crust, core

b. lithosphere, mantle, core

c. crust, mantle, core

d. asthenosphere, lithosphere, atmosphere

c.) slabs of ocean floor return to the mantle in subduction zones.

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