élimination (2) pâte à papier (2) environnement (2) pollution de l'environnement (2) effet (2) activité minière (2) catalyseur (2) carbone (2) densité (2) Density (2) Bacillus megaterium (2) Bacterial leaching (2) Values (2) Pollution (2) Nature and nurture (2) Natural resources (2) Mining engineering (2) Mines and mineral resources (2) Mineral industries (2) Metals (2) Growth (2) Glucose (2) Euthenics (2) Ecology (2) Density (2) Days (2) Catalysts (2) Carbon (2) Bacillus (Bacteria) (2) Adaptation (Biology) (2)