The Grammy Award for Song of the Year has been awarded since 1959 to the composer (not the performer) of the song in question. Years reflect the year in which the Grammy Awards were handed out, for music released in the previous year.
... of oxygen
2 Light-dependant reaction
2.1 Cyclic photophosphorylation
2.2 Noncyclic photophosphorylation
3 The Calvin cycle
The production of oxygen
It is ...