10 Minerals closest to the Earth's surface can only be excavated by the _________ process.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. quarrying.
- Quarrying is the process of removing rock, sand, gravel or other minerals from the ground in order to use them to produce materials for construction or other uses.
- Quarries principally produce sand and gravel and crushed rock for construction and these materials are usually described as’ aggregates’.
- A quarry is a place where rocks, sand, or minerals are extracted from the surface of the Earth. A quarry is a type of mine called an open-pit mine, because it is open to the Earth's surface.