A) Irrigation B) Hydroelectric power generation C) Navigation D) Flood control
A) Paraguay and Argentina B) Paraguay and Brazil C) Paraguay and Bolivia D) Brazil and Argentina
A) 30 B) 20 C) 10 D) 50
A) Rio Grande B) Amazon River C) Tigre River D) Paraná River
A) 1990 B) 1984 C) 1980 D) 1978
A) Historical monuments B) Industrial facilities C) Residential areas D) Biodiversity
A) Deserts and mountains B) Farmlands C) Forests and wetlands D) Urban areas
A) Cultural tourism B) Ecotourism C) Adventure tourism D) Historical tourism |