Continents puzzzzzzle

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Across
  1. 2. the smallest river in the world
  2. 3. In Africa, its largest river in the world
  3. 6. means “land of many trees”
  4. 8. the cleanest country in the world
  5. 12. There are 12 million of these in Antarctica
  6. 14. The US, Mexico and ___are the 3 largest countries in N Am
  7. 15. country has most rivers
Down
  1. 1. Guatemala,Costa Rica and Panama are part of ___America
  2. 4. the richest country in the world (not the US)
  3. 5. This "city" is smallest nation in the world
  4. 7. Mountain range in South America
  5. 9. country is #1 in education
  6. 10. Bouncing animal from Australia
  7. 11. This country has no trees
  8. 13. Machu Pichu is located in this S. Am. country
  9. 16. Has no capital