some are, some are not. depends on the particles.
Yes, it is combustible.
Anything that can burn is a combustible substance.
Cobustible substances can catch on fire but non-combustible substances are inflammabe
There are some simple requirments for something to be a convenient fuel - it must be abundant, easily collected and transported, cheap and ideally have a high calorific value per unit volume. Actually the question asked is wrong. Combustible subs. = Combustible materials all combustible subs./combustible materials are fuel but all fuel are not combustible subs/combustible material because fuel can also be an incombustible material/incombustible subs.
particles freeze them
particulates or carbon particulates is a solid pollutant which clog up airways and you get get respiratory diseases or conditions for sufferers get worse
Yes, it is combustible.
coke is combustible
Americium is not combustible.
Yes, it is combustible.
stucco is non-combustible
The particulates accumulate in the lung tissue causing massive irritation
Any element is combustible we will find Uranium oxide on the earth. i.e uranium is combustible
No, plasma is not combustible. Plasma is not something that can be combustible without additional chemicals, as it is relatively cool.
Combustible: # Food # Fat
Neptunium is not combustible but pyrophoric as a powder.
Some houses are combustible, such as wooden structures. Even in brick buildings the contents may be combustible.