Which type of mine is the most cost effective to operate?
A) a shallow underground mine
B) a deep underground mine
C) an underground mine where milling is done underground
D) an open-pit mine

Question

Quizplus · Accepted Answer

Open-pit mines are generally the most cost-effective to operate compared to underground mines. This is because open-pit mining involves removing surface material to access ores near the surface, which typically requires less energy and is less labor-intensive than underground mining.

Which Type of Mine Is the Most Cost Effective to Operate