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Answer» Answer: - Mining is the extraction of VALUABLE MINERALS or other geological materials from the earth, usually from an orebody, lode, vein, seam, reef or placer deposit. ...
- Mining in a wider SENSE includes extraction of any non-renewable resource such as petroleum, natural gas, or even water.
- There are four main mining methods: underground, open surface (pit), placer, and in-situ mining. Underground mines are more expensive and are often used to REACH deeper deposits. Surface mines are typically used for more shallow and less valuable deposits.
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