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FORO DEL AGUA SERVICIO NACIONAL DE CAMINOS SUPERVISI N SOCIO AMBIENTAL CORREDOR SANTA CRUZ PUERTO SU REZ

SUPERVISIN SOCIO AMBIENTAL DEL SNC. . INTRODUCCINCONTAMINACIN DE LAS AGUASImportancia del problemaLos ros, lagos y mares recogen, desde tiempos inmemoriales, las basuras producidas por la actividad humana. El ciclo natural del agua tiene una gran capacidad de purificacin. Pero esta mis

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FORO DEL AGUA SERVICIO NACIONAL DE CAMINOS SUPERVISI N SOCIO AMBIENTAL CORREDOR SANTA CRUZ PUERTO SU REZ

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