Answer: It is highly flammable.
Explanation:
Liquid oxygen is created from oxygen atoms that have been forced to assume the liquid state due to compression (change of pressure) and temperature modification.
Specifically this is achieved by cooling the oxygen enough to change it to its liquid state. So, as the temperature drops, the atoms move more slowly because they have less energy.
In this sense, in the liquid state it is easier to store and mobilize oxygen, taking into account that it is a highly flammable gas.
