Coal is formed deep inside the earth under what conditions?

High temperature and low pressure

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Low temperature and low pressure

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High temperature and high pressure

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Low temperature and high pressure

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Solution

The correct option is C High temperature and high pressure
Coal is a rock which is formed from the buries of dead plants and animals for millions of years. Due to high pressure and high temperatures, the physical and the chemical changes take places which results in the formation of coal. Coal is majorly made of carbon and the other constituents include oxygen, sulphur, nitrogen, ash etc.

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