a paragraph in this essay?
Campfires left unattended can have significant consequences, such as forest fires.
Flames are the part of a fire that can be seen, and depending on the material being burned, they can be different colors.
One of the three elements that are required for fire to burn is oxygen.
There are three reasons why fire is important to the development of mankind: warmth, protection, and cooking.
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One of the three elements that are required for fire to burn is oxygen
The subject sentences of this topic are specific to a scientific aspect of the chemical process of fire. As an explanation of the chemical process of fire, it is a chemical reaction using fuel and oxygen, it produces carbon dioxide and water. In other words, it is an exothermic reaction.