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process for coal mining

process for coal mining

Miningis theprocessof digging things out of the ground. Any material that cannot be grown must be mined.Miningthings from the ground is called extraction.Miningcan include extraction of metals and minerals, likecoal, diamond, gold, silver, platinum, copper, tin and iron.Miningcan also include other things like oil and natural gas.. Someminingis done by scraping away the soil (dirt ...

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