Diseases (1) Solids (1) Slopes (Physical geography) (1) Rain and rainfall (1) Pressure (1) Plants (1) Land use (1) Land settlement (1) Impact (1) Hypothesis (1) Dams (1) Barrages (1) Provenances (1) Use (1) Usage (1) Transportation (1) Soils (1) Evolution (1) Erosion (1) Protection (1) Educación--Fines y objetivos (1) Colonización interior (1) Presión (1) Morbilidad (1) Erosión (1) Presas (1) Evolucionismo (1) Enfermedades (1) Suelos (1) Sólidos (1)