Question: Which South American country adopted the US Dollar as its official unit of currency in 2000?
Answer: Independence Day of Ecuador; Equadorians; Ecuadorean; Name of Ecuador; Ecuador; People of Ecuador; Republic of Ecuador; Regions of Ecuador; Independence Day (Ecuador); Ecuadorian Independence Day; Administrative divisions of Ecuador; Ecuadoreans; Ecquador; Subdivisions of Ecuador; Equador; Zones of Ecuador; ECUADOR; ISO 3166-1:EC; Republica del Ecuador; República del Ecuador