Arrange the combustion process in order:
Answer variants:
The substance becomes hot enough to start burning.
Combustible substances such as wood or petrol are kept ready for burning.
The fire goes out when fuel, oxygen, or heat is absent.
Burning continues because oxygen is present in the air.
The burning fuel produces heat and light by reacting with oxygen.
Oxygen present in the air helps the substance to burn.
The correct order in how combustion takes place is: