Which of the following is NOT a primary component that can lead to an explosion?

In the context of explosion hazards, an explosion typically occurs when three primary components are present: fuel, an oxidizer, and an ignition source. Fuel refers to any substance that can combust, such as hydrocarbons. The oxidizer, often oxygen, is necessary to support combustion. The ignition source is what provides the initial energy needed to start the combustion process.

Inert gases, on the other hand, do not participate in the combustion reaction as they do not support burning. They can serve critical roles, such as diluting flammable mixtures or preventing combustion under certain conditions, thereby reducing the likelihood of an explosion. Therefore, while fuel, oxidizers, and ignition sources are essential for an explosion to occur, inert gases do not contribute to this process, making them not a primary component that can lead to an explosion.