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luciaf99 luciaf99
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6 years ago

The Precambrian represents approximately 88 percent of geologic time.
  a. True
  b. False

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Helverson28Helverson28
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6 years ago
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luciaf99 Author
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6 years ago
Thanks for your help!!
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Yesterday
Smart ... Thanks!
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2 hours ago
Brilliant
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