Argentine (2) Environmental degradation (2) Pollution (2) Oases (2) Life (2) Irrigation canals and flumes (2) Industrialization (2) Death (2) Medio ambiente--Degradación (2) Oasis (2) Vida (2) Desarrollo industrial (2) Muerte (2) Contaminación (2) Acequias (2) Evolution (Biology) (1) History (1) Historia (1) Evolución (1)