Question

What is the main cause of fire?​

Answer 1

Answer:

Fires can be started in a number of ways, but they generally fall into one of two categories: fires caused by heat igniting combustible materials, and those caused by chemical reactions. Your home is full of objects and materials that can combust under the right conditions.

Explanation:

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Answer 2

For a fire to start it needs a source of ignition, a source of fuel and a source of oxygen. For example, if a smoker falls asleep with a cigarette still lit, and sets fire to the sofa, the cigarette is the source of ignition, the material on the sofa is the source of fuel and the air is the source of oxygen.