What are the conditions necessary for combustion to take place ?

Explanation

There are three conditions which are necessary for combustion. These are :
(i) Presence of a combustible material: A piece of metal or glass does not burn if we try to burn it. But paper or wood can be burnt easily.
(ii) Attainment of ignition temperature: A wet piece of wood does not catch fire but a dry piece burns easily. This is because in wet wood, water does not allow the wood to reach its ignition temperature.
(iii) Supporter of combustion : Oxygen present in air is a supporter of combustion and is a necessary condition of combustion.