our atmosphere is composed of several gases. the name of the gas we breathe, o₂, is\na oxygen squared\nb…

our atmosphere is composed of several gases. the name of the gas we breathe, o₂, is\na oxygen squared\nb monoxide.\nc oxide.\nd diatomic oxygen.

our atmosphere is composed of several gases. the name of the gas we breathe, o₂, is\na oxygen squared\nb monoxide.\nc oxide.\nd diatomic oxygen.

Answer

Brief Explanations:

The gas we breathe, $O_2$, consists of two oxygen atoms bonded together. This is called diatomic oxygen. "Oxygen squared" is an incorrect naming. Monoxide and oxide refer to compounds with oxygen and other elements in different bonding - contexts, not to $O_2$ alone.

Answer:

D. diatomic oxygen