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acid mine drainage (1) |
archaeological and palaeontological resources (1) |
Cradle of Humankind World Heritage Site (1) |
dolomite, karst system (1) |
risks and impacts (1) |
Sterkfontein Caves (1) |
acid mine drainage (1) |
archaeological and palaeontological resources (1) |
Cradle of Humankind World Heritage Site (1) |
dolomite, karst system (1) |
risks and impacts (1) |
Sterkfontein Caves (1) |