<Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (November 2016) (Learn how and when to remove this template message) </Td> </Tr> <P> The Fire Triangle or Combustion Triangle or" Fire Diamond" are simple models for understanding the necessary ingredients for most fires . </P> <P> The triangle illustrates the three elements a fire needs to ignite: heat, fuel, and an oxidizing agent (usually oxygen). A fire naturally occurs when the elements are present and combined in the right mixture, meaning that fire is actually an event rather than a thing . A fire can be prevented or extinguished by removing any one of the elements in the fire triangle . For example, covering a fire with a fire blanket removes the oxygen part of the triangle and can extinguish a fire . In large fires where firefighters are called in, decreasing the amount of oxygen is not usually an option because there is no effective way to make that happen in an extended area . </P> <Dl> <Dd> Not to be confused with NFPA 704, also called the fire diamond . </Dd> </Dl>

What are the three components of the fire triangle