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symbo symbo
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Posts: 1970
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7 years ago
How old are the lunar maria?
A)   Less than 1 billion years old   C)   3.1 to 3.8 billion years old
B)   4.0 to 4.3 billion years old   D)   1.8 to 2.6 billion years old
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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hyponoticahyponotica
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7 years ago
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symbo Author
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7 years ago
This did it for me! Thank you
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