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What is the function of tunnels and passageways in subsurface mining? a. to reach mineral ore deep below the surface of the earth b. to reach mineral ores on the surface of the earth c. to drain underground
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What is the function of tunnels and passageways in subsurface mining?

a. to reach mineral ore deep below the surface of the earth
b. to reach mineral ores on the surface of the earth
c. to drain underground lakes where minerals are found
d. to create strip mines and quarries below the surface of the earth

User Crompy
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The answer is D because they would have to make quarries just below the surface to mine
Mineral ores much quicker (Quarries- a large hole/pit under ground used to get stone and minerals)
User Janna Maas
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