And the only mechanism that could transform the entire atmosphere is a planetwide biological process: the photosynthesis done by plants, which take in carbon dioxide and expel oxygen.
(the only mechanism; could transform; the entire atmosphere) (the only mechanism that could transform the entire atmosphere; is; a planetwide biological process) (the photosynthesis; done; by plants) (plants; take; L:in carbon dioxide) (plants; expel; oxygen)
the only mechanism the only mechanism that could transform the entire atmosphere the photosynthesis plants plants
could transform is done take expel
the entire atmosphere
a planetwide biological process
by plants
L:in carbon dioxide
oxygen