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Were did oxygen come from

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Anonymous

13y ago
Updated: 8/17/2019

After lots of reasearch Scientists have said that oxygen comes from the water that is sea. It comes on the coastal regions and the trees in the coastal region make it further spred and the other tree which gets it spreads it and so on and on and on..... Thats why we usually say to the kids that the tree supplies oxygen.

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Wiki User

13y ago

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