WHAT IS FIRE?
What is fire?
Fire is a chemical reaction known as combustion which occurs when fuel and oxygen are brought together with sufficient heat to cause ignition.
You need three things to start a fire: Heat + Oxygen + Fuel = Fire
This is also known as the triangle of fire.
Heat - A critical temperature must be reached - a heat source
Fuel - The combustible substance - something to burn
Oxygen - Completes the combustion cycle
Keep them all separate and a fire will not start. Removing any one of them stops the fire.