izzy0404
izzy0404 izzy0404
  • 07-09-2022
  • Geography
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Where did the oxygen in our atmosphere come from?

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sadbean42
sadbean42 sadbean42
  • 07-09-2022
The majority comes from the ocean, while a small percentage comes from trees
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pizzahut2048472
pizzahut2048472 pizzahut2048472
  • 07-09-2022
The photosynthesis in our plants
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