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Fire Safety
The above answers are fine but I would rather search fire in Wikipedia.
Fire is exothermic chemical reaction resulting from the combustion of fuel, heat and oxygen. It is self-sustain process of rapid oxidation of a fuel, which produces heat and light
Or the proper proportionate of fuel, heat and oxygen make combustion is fire.
The fire tetrahedron is a better representation of the combustion process. The tetrahedron has 4 faces. The 4 faces of the fire tetrahedron are:
Enough oxygen to sustain combustion,
Enough heat to raise the material to its ignition temperature,
Some sort of fuel or combustible material
And the chemical, exothermic reaction
Fire is substances combine chemically with oxygen from the air and typically give out bright light, heat, and smoke.
There is three type of principles are fuel or material, oxygen and heat (source of ignition).
Fuel- the substance is consumed during combustion process
Oxygen -consumed during combustion when it's chemically combined with the fuel. oxygen is present in the air at the concentration of%
Heat- it's essential to start the combustion process
