ANSWERS: 7
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Stuff oxidizing in air.
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Plasma. http://en.wikipedia.org/wiki/Plasma_(physics)
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http://en.wikipedia.org/wiki/Pyrolysis This should teach you about fire.
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It isn't matter at all, so technically it's not made up of anything, Its a chemical reaction made when something flamable, is mixed with the oxygen or other atmosphereic ingrediants.
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Fire is the rapid oxidation of a combustible material releasing heat, light, and various reaction products such as carbon dioxide and water. If hot enough, the gases may become ionized to produce plasma. Depending on the substances alight, and any impurities outside, the color of the flame and the fire's intensity might vary. Fire in its most common form can result in conflagration, which has the potential to cause physical damage through burning.
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Fire is fundamental, one of the four classical elements. http://en.wikipedia.org/wiki/Classical_element
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Flames are glowing gases. Is that what you mean by fire?
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