Asked by Rohan Anand on May 07, 2024
Verified
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
Open-Pit Mine
A type of surface mining operation where rocks or minerals are extracted from a large open pit or borrow.
Underground Mine
A type of mine where the extraction of resources occurs below the Earth's surface, accessed through tunnels or shafts.
Milling
A mechanical process that involves grinding, cutting, or crushing materials to create finer particles.
- Recognize the environmental impacts of mining and the benefits of sustainable practices.
Verified Answer
NF
Nicholas FosterMay 07, 2024
Final Answer :
D
Explanation :
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.
Learning Objectives
- Recognize the environmental impacts of mining and the benefits of sustainable practices.