Answer:
A
Explanation:
The area that represents the least dense part of the geosphere is the portion or region A.
Density is the determined by the packing of a layer.
- The geosphere is the solid part of the earth
- Since A denotes the crust, it is the least dense part of the earth.
- In particular, the continental crust is the least dense part of the earth.
- During the differentiation of the earth, denser minerals gravitated towards the center and the lighter ones partitioned to the surface.
- This makes the crust the least dense portion of the earth
