what is shaft mining and open cast mining
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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
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Answer:
Minerals that lie 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
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