Here's the breakdown:
* Flammable: These substances have a flash point below 100°F (37.8°C). This means they can easily ignite and burn at relatively low temperatures. Examples include gasoline, ethanol, and acetone.
* Combustible: These substances have a flash point at or above 100°F (37.8°C). They require a higher temperature to ignite and burn compared to flammable substances. Examples include kerosene, diesel fuel, and wood.
It's important to note that both flammable and combustible substances pose fire hazards and should be handled with caution.