Which term describes suspended ash particles resulting from combustion?

The term that best describes suspended ash particles resulting from combustion is referred to as "fly ash." Fly ash is a byproduct of combustion, particularly from coal-fired power plants, and consists of fine particles that are carried away in flue gases. These particles are often collected for various uses, including in construction and cement production.

Additionally, "particulate matter" is a broader term that encompasses tiny solid or liquid particles suspended in the air, which can include dust, dirt, soot, and smoke, created from various sources, including combustion. Thus, both fly ash and particulate matter accurately describe aspects of the same phenomenon related to combustion emissions.

Therefore, the correct response captures the fact that both "fly ash" and "particulate matter" refer to specific elements of suspended ash particles produced during combustion processes. This dual identification in the correct response indicates a comprehensive understanding of combustion byproducts.