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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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Wutwut12 Wutwut12
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6 years ago

Both the presence of banded iron formations and red beds are evidence that the atmosphere and hydrosphere changed
  from oxidizing to reducing in the Proterozoic.
  a. True
  b. False
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busfuohrugfbusfuohrugf
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6 years ago
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