Fuel may consist of the following:
Solids
Wood, coal, rubber, plastics, paper, etc. The heavier and thicker the material the slower it burns. Lighter objects like paper and sawdust ignite and burn more quickly than heavier objects.
Liquids
Paraffin and petrol are flammable liquids. Around the home cooking oil, nail varnish remover, oils, some paints and glues are also flammable.
Gases
Gas and liquefied petroleum gas (LPG) are examples of flammable gases used in our homes
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