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Raider49 Raider49
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7 years ago

Ultramafic lava flows are significant in the Archean rock record because they indicate that Earth was 90 percent
  molten.
  a. True
  b. False
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saundrasmith243saundrasmith243
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7 years ago
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Raider49 Author
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7 years ago
Thank you, thank you, thank you!
nsak
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Yesterday
Good timing, thanks!
Starfiew
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2 hours ago
Smart ... Thanks!
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