Correct Answer: D
Explanation:
It isn't flammable itself, but when it is heated sufficiently, it separates into nitrogen and oxygen, and the oxygen is free to assist in the combustion of a fuel such as gasoline. Nitrous oxide (N2O) is used in internal combustion engines as a way of delivering more oxygen into the cylinder.
It performs a task similar to that of a turbocharger (increasing the rate of oxygen delivery), but it uses a consumable tank of liquid, while the turbo uses a mechanical device to increase pressure, driving more oxygen into the engine.