Question

Minerals like coal are taken out by the process of drilling. Is the statement true or false? Give reason for your answer​

Answer 1

Answer:

FALSE !!!!!!!!!!!!!!!!!!!

Answer 2

Answer:

False.

Auger mining is usually associated with contour strip mining. With this method, the coal is removed by drilling auger holes from the last contour cut and extracting it in the same manner that shavings are produced by a carpenter's bit. Coal recovery rates approach 60 percent with this method.

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