Mercury's average density is about as high as Earth's. This is most likely because
A) it contains a significantly higher fraction of iron than Earth.
B) it is highly compressed by its own gravity.
C) it is composed of material blasted off Earth in a collision.
D) unlike Earth, it does not have a (light) atmosphere that lowers its average density.
Correct Answer:
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Q2: The Caloris Basin found on Mercury was
Q3: Mercury has only a trace atmosphere because
A)
Q4: Which planet shows the largest variation of
Q5: The surface of Mercury resembles the Moon's
Q6: Of all the terrestrial planets, _ has
Q8: Mercury's crust
A) is molten because it is
Q9: Mercury features long, steep cliffs in its
Q10: What is the surface of Mercury like?
A)
Q11: Which surface feature of the Moon is
Q12: Why is the surface of Mercury more
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