Not sure but it sometimes stops the flow of oxygen to the fire, eventually extinguishing it.
If your on fire you stop drop and roll
stop drop & roll
Stop,drop,roll
stop, drop, and roll
Stop, Drop, and Roll
Stop, drop, and roll!!!
STOP, DROP, AND ROLL until the fire is out of your clothing.
You stop drop and roll
Stop, Drop , and Roll
Stop, Drop, and Roll. or Run/Walk quickly away from the fire.
Stop, drop and roll! -No, that's if you are on fire: In an earthquake, it's stop, drop, and COVER.
Stop whatever you are doing, then lie on the floor and roll till the fire is out.