déchets (2) pollution (1) animal (1) industrie (1) déchet industriel (1) eau douce (1) économie (1) Amérique Centrale (1) jeune (1) Water (1) Spring (1) Pollution (1) Mountains (1) Life (1) Inventions (1) Industries (1) Fresh water (1) Drinking water (1) Concepts (1) Communities (1) Central America (1)
gestion des déchets (1) déchets (1) science (1) ressources (1) recyclage (1) besoin (1) modèle (1) décharge (1) industrie (1) champ (1) économie (1) activité minière (1) Science (1) Salvage (Waste, etc.) (1) Refuse and refuse disposal (1) Perspective (1) Mining engineering (1) Mines and mineral resources (1) Mineral industries (1) Industries (1) Example (1) Recycling (1) Science (1)