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Home Q & A Board Biology-Related Homework Help General Biology
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kajumbi kajumbi
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7 years ago
Approximately when did the earth's crust solidify?
A) 8 billion years ago
B) 4 billion years ago
C) 2 billion years ago
D) 1 billion years ago
Textbook 
Biology: The Core

Biology: The Core


Edition: 2nd
Author:
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KiparaKipara
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7 years ago
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kajumbi Author
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#2
7 years ago
Now I feel like dancing! lol
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