Question

what is the difference between open cast mining,shaft mining and off shore drilling¿??..​

Answer 1

Answer:

Minerals that lie at shallow depths are taken out by removing the surface layer; this is known as open-cast mining. Deep bores, called shafts, have to be made to reach mineral deposits that lie at great depths. This is called shaft mining.Open cast mining refers to the extraction of minerals from a shallow depth of the earth. Shaft mining refers to the extraction of minerals by constructing horizontal shafts deep within the earth.

Answer 2

Answer:

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Explanation:

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