Brazil, officially the Federative Republic of Brazil, is the largest and easternmost country in South America and Latin America. It is the world's fifth-largest country by area and one of the most populated countries. Its capital is Brasília, and its most populous city is São Paulo. Brazil is a federation composed of 26 states and a Federal District. It is the only country in the Americas where Portuguese is an official language. Brazil is among the world's most multicultural and ethnically diverse nations, due to over a century of mass immigration from around the world.

Bounded by the Atlantic Ocean on the east, Brazil has a coastline of 7,491 kilometers (4,655 mi). Covering roughly half of South America's land area, it borders all other countries and territories on the continent except Ecuador and Chile. Brazil's Amazon basin includes a vast tropical forest home to diverse wildlife, a variety of ecological systems, and extensive natural resources spanning numerous protected habitats. This unique environmental heritage positions Brazil at number one of 17 megadiverse countries. The country's natural richness is also the subject of significant global interest, as environmental degradation (through processes such as deforestation) has direct impacts on global issues such as climate change and biodiversity loss.

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