Question

what is the difference between a combustible substance and a fuel

Answer 1

hey...
her is your answer.....
combustible : Flammablematerials are those that ignite more easily than other materials, whereas those that are harder to ignite or burn less vigorously arecombustible. A fuel is any material that can be made to react with other substances so that it releases chemical or nuclear energy as heat or to be used for work.
hope it helps u.....

Answer 2

Combustible substance are those things that are used for combustion. Fuel are the substance which give heat and on burning