Prepare a list of combustible and non combustible substances.

Here's a list of common combustible and non-combustible substances:

Combustible Substances:

Wood
Paper
Cloth
Gasoline
Diesel
Oil
Propane
Natural gas
Alcohol
Charcoal
Methane
Butane
Turpentine
Acetone
Ethanol
Non-Combustible Substances:

Glass
Metal (e.g., iron, steel, aluminum)
Stone
Concrete
Brick
Ceramic
Water
Sand
Marble
Granite
Plastic (some types, such as PVC, are combustible, but many others are non-combustible)
Rubber (some types may burn, but many others are non-combustible)
Clay
Gypsum
Asbestos (although it is a health hazard, it is non-combustible)
Please note that this is not an exhaustive list, and there may be other substances that could be classified as combustible or non-combustible depending on their composition and properties. It's always important to handle and store any substances safely, especially combustible materials, to prevent accidents and fires.