Fire is rapid oxidation of a material in the combustion process kiwiami, which produce heat, light, and various other chemical reaction products. [1] The process of oxidation which is slower, such as corrosion or digestion was not included in the definition. Fire intensity varied form of energy and has the form of light (with wavelengths also outside the visual spectrum so it can not be seen by human eyes) and the heat can also cause smoke.
Fire (color-influenced by the intensity of light) is usually used to determine whether a fuel is included in kombusi levels that can be used for human purposes (eg used as fuel for a campfire, fireplace or gas stove) or a hard-burning rates that are very crusher , burning with uncontrollable to the detriment of humans (eg, burning the buildings, forests, etc.).
The discovery of how to make fire is one of the most useful thing for humans, because of the fire, class of hominids (humans and their relatives such as apes) can be safe from wild animals, cook food, and get a light source and keeping himself to stay warm.
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