These places are the typical home of BWEs such as the Bagger 293, which can work in tandem with LHDs in flat areas of these places called “benches.” Acidithiobacillus bacteria congregate in these locations, where they oxidize toxic sulfides to produce a namesake “acid drainage”. Untopping is a technique (10[1])often used in Wales to extend the lifespan of these places. “Room and pillar” and “longwall” techniques are used to produce stopes in these locations, which can then be backfilled with their discarded tailings. The “surface” type (10[1])of these places, which usually remove the overburden located above them, includes their “strip” and “open-pit” types. (10[1])For 10 points, name these facilities for extracting minerals and ore from the ground. ■END■