Multiple Choice
Earth's average density (5520 kg/m3) is slightly higher than that of Mercury (5430 kg/m3) because
A) Earth has a larger iron core in proportion to its size than Mercury has.
B) Earth is more massive than Mercury and has therefore become more compressed, gravitationally.
C) Mercury's interior has expanded slightly because of radioactive heating, reducing its density since its formation.
D) Earth has a denser atmosphere than Mercury has.
Correct Answer:
Verified
Correct Answer:
Verified
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