Oxygen is a gas that caught fire easily. When the fire occurred. We need to get rid of the oxygen out of the water by accident, or any other substances, such as nitrogen or cover carbon dioxide.
Oxygen is a gas that is flammable. Fire We must get rid of the oxygen out of the arena by injecting water or other substances, such as nitrogen or carbon covered.
Oxygen gas is flammable. When there was a fire. We must get rid of oxygen from the scene by water injection or other substances such as nitrogen covered or carbon dioxide.