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systemready — Oxygen
Published: 2006-06-26 23:03:32 +0000 UTC; Views: 937; Favourites: 12; Downloads: 44
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Description
PS CSThe atmospheric abundance of free oxygen in later geological epochs and up to the present has been largely driven by photosynthetic organisms, roughly three quarters by phytoplankton and algae in the oceans and one quarter from terrestrial plants. hmmmm ok!
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Comments: 7
ps does alot of cool shit if you know what your doing, this is a good example of that
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