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Answer:
1. The most significant uses of coal are in electricity generation, steel production, cement manufacturing and as a liquid fuel. Different types of coal have different uses. Steam coal - also known as thermal coal - is mainly used in power generation.
2. Coal is a natural occurring substance whereas Coke prepared material with few impurities and high Carbon content, usually made from Coal. 2. Coal has a Volatile matter content whereas Coke has relatively very low Volatile matter content which suits it for a better fuel.
3. Over millions of years, heat and pressure from Earth's crust decomposed these organisms into one of the three main kinds of fuel: oil (also called petroleum), natural gas, or coal. These fuels are called fossil fuels, since they are formed from the remains of dead animals and plants.