What's best for putting out fires: water, sand, dirt??

[soon2bepro]

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What in the world makes you think coal combustion isn't reliant on oxygen?

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Yeah I was puzzled by that aswell... But then again Borodog had already mentioned something about buried coal staying hot. I guess coal combustion may consume less oxygen per unit of heat produced in it's burning than wood or other similar materials.

[Borodog]

When you burn things like wood you get what are commonly referred to as hot "coals".

[Ringo]

it is water, because water and fire are opposites - and water cancels out fire. similarly, earth and air "cancel out", and these four elements are the fundamental building blocks of matter.