Question

what is quarrying mining and drilling​

Answer 1

Answer:

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 are also known by other names around the world: 'surface mine', 'pit', 'open pit' or 'opencast mine'.

Drilling - Produce (a hole) in something by or as if by boring with a drill. (of a person or machine) Sow (seed) with a drill. Quarrying - Extract (stone or other materials) from a quarry. Cut into (rock or ground) to obtain stone or other materials

Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef or placer deposit. These deposits form a mineralized package that is of economic interest to the miner.

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Answer 2

Mining - Suppose coal is present at depth of 1000ft. So, in order to remove coal from subsurface what we do is remove the overburden strata or the matrix present above coal. This process is called mining. Mostly Solids like Coal, Metals etc are retrieved from subsurface in case of mining.

Drilling - Suppose Hydrocarbons are present in pore spaces of sandstone or limestone at subsurface. In order to retrieve them to surface instead of mining we go for drilling operations. As in this case liquids can be easily produced to surface because of High pressure (Due to overburden stress). Here we can also go for mining but it's not economical to the companies. So they prefer for Drilling.

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