How are minerals extracted? Explain.
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ᴛʜᴇ ᴘʀɪᴍᴀʀʏ ᴍᴇᴛʜᴏᴅs ᴜsᴇᴅ ᴛᴏ ᴇxᴛʀᴀᴄᴛ ᴍɪɴᴇʀᴀʟs ғʀᴏᴍ ᴛʜᴇ ɢʀᴏᴜɴᴅ ᴀʀᴇ: ᴜɴᴅᴇʀɢʀᴏᴜɴᴅ ᴍɪɴɪɴɢ. sᴜʀғᴀᴄᴇ (ᴏᴘᴇɴ ᴘɪᴛ) ᴍɪɴɪɴɢ. ᴘʟᴀᴄᴇʀ ᴍɪɴɪɴɢ.
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Explanation: Open-cast mining, also known as open-pit mining and open-cut mining, refers to a method of extracting rock or minerals from the earth by their removal from an open pit or borrow. Open-pit mines are used when deposits of commercially useful minerals or rock are found near the surface.
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