Yes
Heat and Light
Absolutely, they can start fires. It would be extremely unlikely of catching larger items on fire without a flammable or combustible object being nearby or being started as well. However, it is not suggested you light anything flammable or combustible on fire. You should not start any sort of fires like this unless you are in an emergency situation and it is the only way to start a fire when it is absolutely needed.
An ignition source, fuel and oxygen
Yes, it can. Flammable or combustible means that it can catch on fire. Anything that can catch on fire is hazardous to one degree or another.
It can happen where all of combustible material, a source of oxygen, and a source of heat are present. Rockets fire in space all the time. However, the combustion actually occurs within a non-vacuum, the space occupied by the combustible material (e.g. hydrazine) and the oxidizing agent (e.g. nitrogen tetroxide). In a true vacuum, having no matter means having no combustible materials.
A combustible material can be set on fire. You can also set a frying pan on (a) fire.
A flammable material has a lower flash point (100F or below) while a combustible material has a flash point of 100F or HIGHER. In other words, it's a lot easier for a flammable material to catch fire than a combustible one because of the minimal amount of energy (heat) required to get it going versus the higher requirement of a combustible material.
To start a fire, people commonly use tools like matches, lighters, or fire starters to ignite a flammable material such as kindling, paper, or wood. By combining a source of ignition with dry, easily combustible materials, they can create a flame that will grow into a fire.
Combustible fabrics can catch fire and combust, unlike the latter.
Heat and Light
Combustible or burnable fuel, heat or spark, and oxygen are needed to start a fire.
Basically non combustible and fire resistive are the same. Difference is non combustible has steel frame members that are unprotected or limited protected. Fire resistive has protected steel frame members with a fire rated material such as concrete.
You should refrain from putting electric heaters near combustible materials because heat emitted from the heater is capable of causing the combustible material to blow up or catch fire.
Absolutely, they can start fires. It would be extremely unlikely of catching larger items on fire without a flammable or combustible object being nearby or being started as well. However, it is not suggested you light anything flammable or combustible on fire. You should not start any sort of fires like this unless you are in an emergency situation and it is the only way to start a fire when it is absolutely needed.
Combustible fabric is material that can catch fire and burn when exposed to an ignition source, such as an open flame or heat. Examples include cotton, silk, and many synthetic fabrics. Noncombustible fabric, on the other hand, is material that does not readily catch fire or burn when exposed to these same sources of ignition. This type of fabric typically has a high resistance to flame and heat, making it safer in situations where fire risk is a concern. In summary, the key difference lies in their flammability properties, with combustible fabric being prone to ignition and burning, while noncombustible fabric is resistant to these risks.
Carbon monoxide is NOT required.
An ignition source, fuel and oxygen