Question

Explain the methods of mineral extraction​

Answer 1

Answer:

Mining are of two types:

1)Open-cast mining

2)Shaft mining

1) Open- cast mining:

Open-cast mining, also known as open-pit mining and open-cut mining, refers to a method of extracting rock or minerals from the earth by their removal from an open pit or borrow.

2)Shaft mining:

Shaft mining or shaft sinking is excavating a vertical or near-vertical tunnel from the top down, where there is initially no access to the bottom. Shallow shafts, typically sunk for civil engineering projects differ greatly in execution method from deep shafts, typically sunk for mining projects.

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Answer 2

The correct answer is mining

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