Sulfur (S)
Gold (Au), tin (Sn), silver (Ag), and iron (Fe) are extracted from underground mines with hot water.
Salt can be extracted from mines or sea water.
Salt is extracted from mines or sea water.
Salt is extracted from mines or sea water.
Salt (NaCl) is extracted from mines or sea water.
Sodium chloride is extracted from mines or sea water.
Salt is extracted from sea water (the water is released by evaporation) or from salt mines.
Sodium chloride is extracted from salt mines or from sea water.
Salt can be extracted from sea waters (not mines); after evaporation of water salt remain as a crystallized solid.
types of underground mining methods - unsuported(natural suport)mining method -saported(artificial support)mining method - caving method
Salt is extracted from mines or sea water, sometimes refined and iodized.
The salt used on icy roads in winter is quarried from underground salt deposits (salt mines), which are the remains of ancient salty seas. Salt is not extracted from fresh water.