Question

How long is deepest mine humans have dug till now?​

Answer 1

Answer:

Known as the Kola Superdeep Borehole, the deepest hole ever dug reaches approximately 7.5 miles below the Earth's surface (or 12,262 kilometers), a depth that took about 20 years to reach. The hole was intended to go “as deep as possible,” which researches expected to be around 9 miles (that's ~14,500 meters).

Explanation:

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Answer 2

Answer:

it's 4950 m without any instrument....

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