Assertion: cyanobacteria | /r/CapableOf | increase the oxygen content
Facets:
value: on earth
type: LOCATION
Source sentences:
text: One thing that is certain is that when plants, and cyanobacteria (which are photosynthetic bacteria) began giving off oxygen and increasing the oxygen content on earth, what we now know as eubacteria began to thrive with this new niche for a final electron acceptor, and there was an increase in evolution.