Which of the following describes the practice of drift mining?

A digging a tunnel into the side of a mountain, often involving explosives

B considerable disruption of surface land

C the deepest form of underground mining, involving excavating a tunnel from the top to the bottom area of the mine

D removal of the surface layer of mineral deposits

Question

HittoSama HittoSama

20-01-2017
Biology

Answered

Which of the following describes the practice of drift mining?

A digging a tunnel into the side of a mountain, often involving explosives

B considerable disruption of surface land

C the deepest form of underground mining, involving excavating a tunnel from the top to the bottom area of the mine

D removal of the surface layer of mineral deposits

Verified Answer :

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TaehyungsKitten TaehyungsKitten · Answer 1 · 2017-05-16T02:41:01-04:00

TaehyungsKitten TaehyungsKitten

16-05-2017

The answer is digging a tunnel into the side of a mountain using explosives. (A)

Answer Link

VestaHofman VestaHofman · Answer 2 · 2018-11-14T03:43:11-05:00

Answer: A. digging a tunnel into the side of a mountain, often involving explosives.

Drift mining is a process of subsurface or underground mining. That involves horizontal digging a tunnel into the side of the mountain or hillside in order to extract mineral deposits. This results in a creation of a drift, a long dug with tunnel, a horizontal path towards mineral resources. Explosives are used to create tunnel in the subsurface layers of the mountain. Creation of tunnel can drift a person towards mineral deposits due to the action of gravity. This mining method can be used to extract minerals of economic importance like gold, coal, zinc and quartz.