What happens during the decay phase of a fire?

During the decay phase of a fire, the intensity of the fire is decreasing. This phase typically occurs after the fire has peaked and is characterized by a reduction in the overall heat and flames produced. Factors contributing to this decline include the exhaustion of available fuel, changes in air supply, or the application of firefighting efforts that have started to take effect.

In this phase, the fire may still pose risks, particularly in terms of potential reignition or hidden embers that could lead to flare-ups. Understanding this phase is crucial for individuals responsible for fire safety and response, as it highlights the need for continued vigilance even when the visible signs of fire have diminished.

The other options describe various aspects of fire dynamics that do not align with the characteristics of the decay phase, as they either suggest the fire is still gaining strength or has not yet begun the diminishing process.