Which of the following is not one of the three states of matter in which fuel may be found?

The three primary states of matter relevant to fuel are solid, liquid, and gas. Fuels can exist in these forms, which influence how they are ignited and how they burn. For instance, solid fuels like wood and coal require different combustion methods compared to liquid fuels such as gasoline or gas fuels like propane.

Plasma, while a state of matter that exists under extreme temperatures and is found in phenomena like lightning or stellar interiors, is not typically associated with fuel in the context of fire behavior and combustion. Therefore, identifying plasma as the state not commonly found in fuel aligns with the understanding of physical states in relation to typical combustion processes.

Recognizing the distinction between solid, liquid, and gas as states commonly utilized in fuels helps in understanding fire dynamics and the characteristics of various fuels in different scenarios.