Chili (1) Labor (1) Worry (1) Water (1) Social sciences (1) Refuse and refuse disposal (1) Pressure (1) Population (1) Pollution (1) Miners (1) Manganese (1) Life (1) Fish culture (1) Evaluation (1) Anura (1) Amphibians (1) Agriculture (1) Evidencia (1) Anuros (1) Residuos (1) Evaluación (1) Vida (1) Manganeso (1) Presión (1) Preocupación (1) Ciencias sociales (1) Población (1) Mineros (1) Anfibios (1) Contaminación (1)