1) When harmful substances (like chemicals, metals, or waste) get into the air, soil, or water, making them unsafe for living things. a) Contamination b) Overburden c) Tailings 2) When rainwater mixes with certain rocks from mines and turns acidic. a) Overburden b) Reclamation c) Acid Mine Drainage 3) The layers of soil and rock that sit on top of the minerals the miners want. a) Extraction b) Overburden c) Processing 4) The waste left over after the useful minerals are taken out of rock. a) Mineral b) Exploration c) Tailings 5) When water soaks through soil or rock and carries chemicals or minerals with it. a) Reclamation b) Leaching c) Evaporation 6) Fixing the land after mining has finished. a) Reclamation b) Leaching c) Extraction 7) Taking minerals or metals out of the ground. a) Pollution b) Overburden c) Extraction

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