Mercury's iron content indicates that it may have:
A) strong magnetic fields.
B) retained much of its internal heat.
C) undergone a significant impact early in its history.
D) formed before the other terrestrial planets.

Question

Quizplus · Accepted Answer

Mercury's high iron content suggests it may have undergone a significant impact early in its history, which could have stripped away much of its original silicate mantle, leaving a large iron core.

Mercury's Iron Content Indicates That It May Have