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| 1. |
difference between open pit mine a quarry and an underground mine with shafts |
| Answer» \tOpen pit miningUnderground mining with shaftDone for those minerals which lie close to the surface of the earthMinerals which lie at great depths below the surface of the earthUsed where commercially useful minerals are found near the surface.Used where the minerals occurs as veins in hard rock deep below the surface of the earthExtracted using Earth moving machineryExtracted using elevators which can carry people and mineral extracting equipment deep into areas where minerals are available\t | |