What Are The Uses Of Oxygen In Our Daily Life?

Breathing- couldn't live without it
Burning- fire needs oxygen to burn
aids reparation to patients in hospitals
ozone in the atmosphere, protects us from the suns ultraviolet rays.

Oxygen is primarily used by all living things to breakdown food into energy with a process called oxidation. We get this oxygen by respiration process.

Apart from this plants use oxygen to make their food using sunlight in presence of Chlorophyll.

And yeah, we breathe it.

Oxygen is all around us so mainly it is what we breath and how things around use grow from that is the answer.