What is the process under which minerals are mined near the earth's surface?
The correct answer is Open Cast Mining.
- Open Cast Mining is the process under which minerals are mined near the earth's surface.
Key Points
- Opencast mining is the process that involves the removal of ore from seams relatively near the surface by means of an open-pit.
- These mines occupy a large area of land for excavation of the ore and disposal of the overburden.
Additional Information
- Drilling is a cutting process which uses a drill bit to cut a hole of circular cross-section in solid materials or ground.
- Quarrying is the process of removing rock, sand, gravel or minerals from the ground in order to use them to produce materials for construction or other uses.
- Shaft mining is the process where miners dig straight down until they reach their desired depth.

