Im sure you mean what four things you need when building a fire??
Anyways the answer is Oxygen,Match,Fuel,Timber
Things you must do in event of a fire.
For a fire to exist, four elements must be present: fuel, heat, oxygen, and a chemical reaction. The fuel provides the material to burn, heat is needed to increase the fuel's temperature to its ignition point, oxygen is required for the combustion process, and a chemical reaction occurs between the fuel and oxygen to sustain the fire.
color,luster,streak,reflections
A toss
Oxgen, Fuel and a heat source
For a vehicle to qualify as a fire engine it must have a water pump and a hose.
Ernest Hemingway once wrote that a man must do four things in his life to demonstrate his childhood what were they
Actually you need three things. Fuel-something that will burn, oxygen and heat. If you take any of the three things away the fire will die out.
You must have redstone things like switch button.
Find them and then understand them.
If you find a fire you must NOT (among other things):fail to report ittry to put it out unless you can do so safelyput more fuel on ituse the wrong type of extinguisher on it
Because if there is a fire you have to be able to get out as fast as possible and if there are things in your way you could die.