Question

what is open cast mining​

Answer 1

Open-pit mining, also known as opencast mining, is a surface mining technique that extracts minerals from an open pit in the ground. ... This surface mining technique is used when mineral or ore deposits are found relatively close to the surface of the earth.

Answer 2

Answer:

Open-pit mining, also known as open-cast or open cut mining, is a surface mining technique of extracting rock or minerals from the earth by their removal from an open-air pit, sometimes known as a borrow.

Explanation:

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