Question

Write about the process of drilling coal mine

Answer 1

Coal miners use giant machines to remove coal from the ground. They use two methods: surface or underground mining. ... Surface mining is used to produce most of the coal in the U.S. because it is less expensive than underground mining. Surface mining can be used when the coal is buried less than 200 feet underground.

Answer 2

Heyaaa !

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Here is ur answer

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The methods are as follow -

Initial Exploration Drilling..

Detailed Mine Resource Drilling.

Underground mining.

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