Question

Explain the following

1)Mining

2Drilling

3)Quarrying

4)Open cast mining

5)Shaft mining​

Answer 1

1) Mining- The process of taking out minerals from rock buried under the earths surface

2) Drilling- Deep wells are bored to take them out.

3) Quarryimg- Minerals that lie near the surface are simply dug out.

4) Open cast mining- Minerals that lie at shallow depths are taken out by removing the surface layer.

5) Shaft mining- Deep bores called shafts have to be made to reach mineral deposits that lie at great depths.