Question

Explain how was coal formed in the earth ?plz send me in brief​

Answer 1

Answer:

Coal can be extracted from the earth either by surface mining or underground mining. Once coal has been extracted, it can be used directly (for heating and industrial processes) or to fuel power plants for electricity. If coal is less than 61 meters (200 feet) underground, it can be extracted through surface mining.....

Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years......

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Answer 2

Answer:

Coal formed millions of years ago when the earth was covered with huge swampy forests where plants - giant ferns, reeds and mosses - grew. ... Heat and pressure produced chemical and physical changes in the plant layers which forced out oxygen and left rich carbon deposits.