
Study: Volcanoes, #tectonics and #cyanobacteria helped increase oxygen levels on ancient #Earth https://www.naturalnews.com/2021-04-12-humans-breathe-thanks-to-volcanoes-tectonics-cyanobacteria.html

3 Crucial processes: Study suggests humans can breathe thanks to volcanoes, tectonics and cyanobacteria
Researchers from the University of California, Riverside and Rice University have tied up multiple complex processes to come up with one comprehensive theory answering how oxygen became ubiquitous on Earth. In…
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