Differentiate between combustible and non combustible substances

Combustible substances are substances that catches fire ( gets ignited) eg: paper, wood , fossil fuels etc.. while Non Combustible substances are substances that does not catch fire when brought near a flame eg: water , sand
Regards,
Reuben

Combustible material are those who burn and non combustible material are those who don't burn

Combustible material are those which catch fire