name the method of extracting minerals in which deep wells are dug to extract petroleum and natural gas.
a) quarrying
b) open cast mining
c) shaft mining
d) drilling
Answers
Answered by
2
Answer:
shaft mining.......
..
Answered by
7
Answer....
Petroleum and natural gas occur far below the earth's surface. Deep wells are bored to take them out, this is called drilling . Minerals that lie near the surface are simply dug out, by the process known as quarrying. Minerals occur in different types of rocks.
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