Molecular oxygen
= Molecular oxygen
{title2=$\mathrm O_2$}
The diatomic form of <oxygen>. Modern terrestrial abundance is maintained largely by oxygenic <photosynthesis>, balanced by chemical and biological sinks.
= Molecular oxygen
{title2=$\mathrm O_2$}
The diatomic form of <oxygen>. Modern terrestrial abundance is maintained largely by oxygenic <photosynthesis>, balanced by chemical and biological sinks.