Which of the following factors is NOT a characteristic of fire behavior linked to fuel?

The fuel ignition temperature is fundamentally related to the characteristics of the fuel itself and how it reacts to heat, but it is not typically considered a direct characteristic of fire behavior in the context of fire spread and intensity, which are influenced more by the type, loading, and availability of fuel.

Fuel type refers to the specific kind of material that is burning (such as grass, brush, or timber) and impacts how flames spread and the energy release rates. Fuel loading indicates the amount of fuel present in a specific area, which affects the potential intensity and duration of a fire. Fuel availability describes the accessibility of fuel for combustion, determining how easily a fire can spread based on the amount of dry, ready-to-burn material present.

While ignition temperature is important for understanding how and when a fire might start, it does not directly describe the ongoing behavior of the fire once it has ignited, thus distinguishing it from the other factors that characterize the dynamic nature of fire behavior linked to fuel.