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Home Q & A Board Science-Related Homework Help Physics
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Tsync Tsync
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8 years ago
The oldest known features of Mercury's surface formed:
A) about 3.9-3.2 billion years ago.      B) about 4.6 billion years ago.
C) just under 4 billion years ago.      D) less than a billion years ago.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
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Minoring in physics
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RatatouilleRatatouille
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8 years ago
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Tsync Author
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#2
8 years ago
Wonderful, thanks for your time and effort
Minoring in physics
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#3
8 years ago
Slight Smile
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