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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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meganchambers8 meganchambers8
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6 years ago

Oxygen accumulated in the atmosphere via ____.
  a. processes in the ozone hole
  b. nucleosynthesis
  c. meteorite bombardments
  d. differentiation
  e. photosynthesis
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dalenambawandalenambawan
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6 years ago
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meganchambers8 Author
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6 years ago
this is exactly what I needed
macbookpro1
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Yesterday
Thanks
ezsancheezy
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2 hours ago
Helped a lot
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