What are the three ingredients required to sustain a fire?

The essential ingredients required to sustain a fire are fuel, oxygen, and heat. These three components form what is commonly referred to as the fire triangle.

Fuel refers to any combustible material that can burn, such as wood, paper, or gasoline. Without fuel, a fire cannot have anything to consume.

Oxygen is crucial because it supports combustion. Generally, the air we breathe contains about 21% oxygen, which is sufficient to sustain most fires.

Heat is the energy source that raises the temperature of the fuel to its ignition point, allowing it to react chemically with oxygen and produce flames.

For a fire to continue burning, all three of these components must be present. If any one of them is removed, the fire will either extinguish or cannot start in the first place. Understanding this principle is significant in both fire prevention and firefighting strategies.

The other options either incorporate incorrect components or misplace the roles of these elements, failing to accurately define the critical elements needed for combustion.