Answer : Because oxygen atoms are shared equally by the bonded electrons, the bond between the two oxygen atoms is a covalent bond.
Step-by-step explanation:
Covalent bond : It is defined as the bond which is formed by the complete sharing of electrons takes place between the atoms.
The covalent bond is usually formed when two non-metals react.
For example : Nitrogen is a non-metal and oxygen is also non-metal. So, nitrogen and oxygen will form a covalent bond.
As we know that oxygen atom is a non-metal atom. So, oxygen and oxygen will form a covalent bond.
Hence, the oxygen atoms are shared equally by the bonded electrons, the bond between the two oxygen atoms is a covalent bond.