MiAngel2235 MiAngel2235

29-03-2018
Physics

contestada

Which type of mine involves digging tunnels and shafts deep underground?
Question 19 options:

1)

strip mine

2)

openpit mine

3)

subsurface mine

4)

smelting

Respuesta :

angelrubanz angelrubanz

31-03-2018

3. surface mine is right.

Answer Link

JemdetNasr JemdetNasr

14-08-2018

The correct choice is

3) subsurface mine

This kind of mining is used to obtain ores close to the surface of earth. the process involves digging tunnels several feet inside the earth upto the location where he resources are located. it creates very small disturbance to the environment and surface. it produces less waste while mining.it is cheaper also . it involves great risk

Answer Link

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