Which of the following is NOT a component of fire?

Heat, oxygen, and a chemical reaction are essential components of fire, forming what is often referred to as the fire tetrahedron. The presence of heat provides the energy required to elevate the material to its ignition temperature, while oxygen supports the combustion process. Furthermore, the chemical reaction is the actual combustion process where fuel reacts with oxygen to produce heat and light.

Water, on the other hand, is not a component of fire. Instead, it is commonly used as an extinguishing agent. When water is applied to a fire, it helps cool the burning material, reducing heat and ultimately disrupting the fire's chemical reaction. Therefore, selecting water as something that is not a component of fire is accurate, as it does not contribute to the combustion process but rather aids in extinguishing it.