The fire triangle consists of 3 aspects: heat, gas, and oxygen, all of that are essential for a fire to ignite and maintain by itself. The fossil document of fire very first seems With all the establishment of a land-based mostly flora in the center Ordovician period, 470 million years in https://carparkextractsystems12234.bloguetechno.com/indicators-on-car-park-extract-systems-you-should-know-71701837