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Three things are needed for fire to burn, often referred to as the triangle of fire. Oxygen, heat and fuel, it is only the fuel that burns, the oxygen and heat together cause the fuel to burn.
The three elements of the fire triangle that must be present are Heat, Oxygen, and Fuel. This has recently been changed though from the fire triangle to the fire tetrahedron. This includes Heat, Oxygen, and Fuel as well. But, it also contains a fourth, chemical reaction.
For fire you need three main ingredients. First you need a fuel, this fuel can be anything that burns like wood for example. Second you need oxygen, without oxygen a fire cannot burn. Finally you need heat, even though fires give off heat you still need it to start a fire. If you remove any one of these three ingredients then the fire will die.
Fire, extreme heat, acid are three examples.
yes, the big three for a fire is oxygen heat and fuel
Sunlight, fire, and pee
Fire and the sun!
Three factors are required. Heat, fuel, oxygen
All heat sources. Plus extreme cold sources cause burns.
Fire, Sun, and lights.
The sources of fire include heat, fuel, and oxygen. These three elements must be present in the right proportions for a fire to ignite and sustain itself. Heat provides the initial energy to start the combustion process, fuel serves as the material being burned, and oxygen enables the chemical reaction to continue.
fire
fire for heat,light and sun for light.
heat
Wood and coal fire :)
fire and the sun
Sun