Question

distinguish between opencast mining and underground mining ​

Answer 1

Answer:   distinguish

Underground Mining is generally used for areas where the mineral seam is too far underground for open cut mining to be of use. ... Stopes are large openings or rooms connected by tunnels in which miners drill and blast the ore. A pillar or wall is left between each room (stope) to prevent the mine from collapsing.

Explanation:

Answer 2

Answer:

Main Difference

In surface mining, the ore is accessed directly from the Earth's surface, and contact is maintained with the surface throughout the operation. Underground or subsurface mining is accomplished with the help of tunnels going into the Earth, and does not occur on the surface.A