Question

What is meant by underground mining ?​

Answer 1

Answer:

Underground mining is used to extract ore from below the surface of the earth safely, economically and with as little waste as possible. The entry from the surface to an underground mine may be through a horizontal or vertical tunnel, known as an adit, shaft or decline.

Explanation:

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Answer 2

Answer:

Q) What is meant by underground mining?​

Ans) Underground mining is used to extract ore from below the surface of the earth safely, economically and with as little waste as possible.