Question

Deep mining differs from opencast mining in terms of excavation methods. Deep mining involves excavating minerals or resources from below the surface, often at great depths, using shafts, tunnels, and underground methods. Opencast mining, on the other hand, involves extracting resources from the surface by removing overlying layers of soil or rock.

Answer 1

Deep mining involves excavating minerals from below the surface using shafts, tunnels, and underground methods, while opencast mining involves removing overlying layers of soil or rock to extract resources from the surface.

Step-by-step explanation:

Deep mining and opencast mining are two different methods of excavation used to extract minerals and resources from the Earth's surface. Deep mining involves excavating minerals from below the surface, often at great depths, using shafts, tunnels, and underground methods. On the other hand, opencast mining involves extracting resources from the surface by removing overlying layers of soil or rock.

An example of deep mining is the extraction of gold, where miners dig tunnels and shafts to reach the deposits hidden underground. Opencast mining, on the other hand, is commonly used for coal extraction, where the overlying layers of soil and rock are removed to access the coal seams.