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Brazil is the largest country in South America, stretching from the Amazon Basin to the Atlantic coast. Brasília is the capital, and the country is known for biodiversity, agriculture, energy, music, football, and Portuguese-language culture.
Argentina is a sovereign country in South America with coastal access and land borders with Bolivia, Brazil, Chile, and others. Buenos Aires is the capital; key languages include Guaraní and Spanish; the listed currency is Argentine peso (ARS); population is about 45.9M.
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Brazil213.6MArgentina46MGuess bigger
BrazilArgentinaBrazil leads this comparison with 213.6M people.