Which of the following is a characteristic of nonflaming combustion?

Nonflaming combustion is characterized by the presence of a smoldering glow. This type of combustion occurs without the production of visible flames and typically involves the incomplete burning of materials such as wood, coal, or other organic substances. The smoldering glow indicates that combustion is occurring, although it is not producing the violent reactions associated with flaming combustion.

In contrast, high-temperature combustion typically produces flames and is associated with rapid burn rates, leading to a different combustion profile than that seen in nonflaming events. The absence of flames and a more gradual release of energy during nonflaming combustion can result in significant amounts of smoke, but the focus here is that the characteristic of producing a smoldering glow distinctly sets it apart from flaming combustion scenarios.