South American Adventure

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Across
  1. 1. Its capital is Quito
  2. 4. Oil-rich country once part of Gran Colombia
  3. 7. Its capital, Montevideo, sits on the Rio de la Plata
  4. 8. Country with the world's largest rainforest
Down
  1. 2. Home to the Atacama Desert
  2. 3. Country with two official capitals
  3. 5. One of the landlocked countries
  4. 6. Country famous for tango and beef