Brazil

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Across
  1. 4. a neighbouring country of Brazil
  2. 5. a variety of living things in one place
  3. 6. houses made of cardboard
Down
  1. 1. the official language of Brazil
  2. 2. capital of Brazil
  3. 3. happens in Rio de Janeiro each year before Lent
  4. 7. River second longest river in the world