More to the point, it was mainly the blue-greens that created atmospheric oxygen.
On Earth, the excess fuel burns in contact with atmospheric oxygen.
Moisture and atmospheric oxygen should be excluded from the reaction.
Scientists have long suspected that atmospheric oxygen played a central role in both the rise and fall of these organisms.
Marine algae living in this new sea raised the level of atmospheric oxygen.
This allows, for example, atmospheric oxygen to be reduced in photosynthesis.
By around two billion years ago, atmospheric oxygen was on the increase.
She doubted that the world climate would change or the atmospheric oxygen be reduced.
A primary size-limiting factor is the amount of atmospheric oxygen.
A cut along the spectrum shows the absorption lines of atmospheric oxygen.
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