yes
charcoal
To effectively fill screw holes in wood for reuse, you can use wood filler or putty. First, clean out the hole and make sure it is dry. Then, apply the filler or putty to the hole, making sure to overfill slightly. Allow it to dry completely before sanding it down to be flush with the surface. This will create a smooth and even surface for reusing the wood.
No, once a DVD-R is burned (or even partly burned) there is no way to 'unburn' it for reuse.
to reduce, reuse, and recycle everything you can
When burned for fuel, wood releases about 3,800 to 4,800 calories per pound.
NO
wood We burned wood in the camp fire. The table is made of wood.
All wood can be burned. Wood is largely cellulose, and cellulose is combustible. Sap, tar, or pitch in wood will also burn. Certainly we can treat wood to minimize its combustion potential, but all wood can be burned in a hot enough fire.
Charcoal?
When wood is burned, the carbon in the wood combines with oxygen in the air to form carbon dioxide, leaving behind black carbon residue known as charcoal. This is why the wood turns black when burned.
Ash.