Luckily, Class A fires are the easiest type to extinguish. The Fire Equipment Manufacturer’s Association recommended using a water or foam fire extinguisher on Class A fires. You can also use water to douse the fire, as it can remove the fire’s heat supply.

But there are kinds of combustion which work underwater. Probably the best-known is magnesium. You can light a strip of magnesium, and the combustion actually produces oxygen, which is then used to sustain the combustion.

Yes. Fire needs heat (high enough temperature), oxygen and fuel. If you take one of the three away the fire will stop. Adding water, the most used technique to extinguish a fire, works this way.

Wind has a strong effect on fire behavior due to the fanning effect on the fire. Wind increases the supply of oxygen, which results in the fire burning more rapidly. It also removes the surface fuel moisture, which increases the drying of the fuel. Air pressure will push flames, sparks and firebrands into new fuel.

Air signs can fuel fire signs with brilliant ideas and intellectual stimulation, while fire signs help bring air signs’ mental energy into action.” Air signs (Gemini, Libra, and Aquarius) and fire signs (Aries, Leo, and Sagittarius) go together because air feeds fire.

Above 10,000 feet there is insufficient oxygen for a flame to take hold and persist in open atmosphere, i.e on the wing or fuselage of an aircraft.

It is not possible to freeze fire. A cool flame is a flame having maximal temperature below about 400 °C (752 °F). It is usually produced in a chemical reaction of a certain fuel-air mixture. Contrary to conventional flame, the reaction is not vigorous and releases very little heat, light, and carbon dioxide.

For traditional flames, the minimum temperature is usually around 1100-1200K, which is the the temperature where chain reactions that favor combustion start to dominate. Cool flames are an interesting phenomenon where flames may be sustained at temperatures as low as 400C.