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coal will eventually run out as it is an non-renewable energy. these are when they cannot be reproduced to make more,unlike would as u can replant them to create trees
HORSY890
Coal is made of carbon and also has more elements like hydrogen, oxygen, sulfur and nitrogen.
Coal starts as plant matter at the bottom of ocean/water. Eventually it is covered and buried by sediments where over a while, metamorphosis (a change in form) happens.
Coal is also one of the biggest, if not the largest, source of energy for the making of electricity.