Multiple Choice
The large Jovian satellites have sizes comparable to Mercury. Why do they have an icy composition compared to Mercury's rocky composition?
A) They formed from hydrogen compounds expelled by the Jovian planets.
B) They experienced many more cometary impacts during the Late Heavy Bombardment.
C) They formed beyond the frost line, where ices were three to four times more abundant than metals and rock.
D) They are captured comets.
Correct Answer:

Verified
Correct Answer:
Verified
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