In which country is the city of Porto Alegre?

In which country is the city of São Paulo? In which country is the city of Manaus? In which country is the city of Recife? In which country is the city of Fortaleza? In which country is the city of Mendoza? In which country is the city of Rosario? In which country is the city of Ushuaia? In which country is the city of Valparaíso?