In which situation is the term 'self-sustained chemical chain reaction' applicable?

The term 'self-sustained chemical chain reaction' is applicable in the process of combustion because combustion is fundamentally a chemical reaction involving the rapid oxidation of a fuel, which produces heat and light. In this process, once initiated, the reaction can continue on its own as long as there are sufficient fuel, oxygen, and heat present. This chain reaction is self-sustaining; the heat produced by the reaction helps to maintain the temperatures necessary for further reactions to occur, effectively creating a cycle that fuels the fire until one of the necessary components is depleted.

In contrast, the other situations do not directly pertain to the self-sustaining nature of combustion. Fire suppression efforts focus on extinguishing the fire rather than the chemical reactions that sustain it. Assessing fire damage involves evaluating the aftermath and impact of the fire, rather than understanding the chemical processes during the fire. Investigating cooking-related fires may involve understanding ignition sources and conditions but does not specifically relate to the concept of a self-sustained chemical chain reaction as the primary characteristic of combustion.