Life cycle theory of fire

There are three basic theories that are used to describe the reaction known as fire. They are the fire triangle, the tetrahedron of fire, and the life cycle of fire. Of the three, the first is the oldest and best known, the second is accepted as more fully explaining the chemistry of fire, while the third is a more detailed version of the fire triangle. Each is briefly described below. 

Figure 6. Illustrates the life cycle theory of fire.

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