A.Carbon dioxide can be used to extinguish electrical fires - it's in the black fire extinguisher. Never use a red fire extinguisher on electrical fires.
Q.Why does graphite conduct electricity?
A.Graphite can conduct electricity due to the vast electron delocalisation within its layers. It is classed as a carbon (like diamonds) and is not a metal.
Q.If the energy we you use contributes to 40% of the UK's carbon emissions who produces the other 60%