Multiple Choice
The internal structure of Mercury is a
A) dense iron core taking up almost half the volume of the planet and a rocky mantle surrounding the core.
B) rocky core with a liquid (or perhaps frozen) water mantle and icy surface.
C) thick rocky mantle taking up most of the volume of the planet, overlaying a small but dense iron core.
D) rocky core surrounded by liquid metallic hydrogen and a hydrogen-helium atmosphere.
Correct Answer:

Verified
Correct Answer:
Verified
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