world geo

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Across
  1. 3. an island made by coral
  2. 4. indigenous people of Australia
  3. 8. a hunting weapon used by Australian natives which is made to return to the thrower
  4. 10. the variation of animals in a habitat
  5. 11. a large wave made by earthquakes or volcanos
  6. 14. a nation as a whole, represented by culture and traditions
  7. 15. the worlds largest system of coral
Down
  1. 1. whitening made by exposure to sunlight or chemicals
  2. 2. the region with culturally indifferent people
  3. 5. a zone in between two or more hostile forces to separate them
  4. 6. a stoney type substance used as a skeleton to wildlife
  5. 7. saltwater separated from the sea by sand bars
  6. 9. the remote inland region of Australia
  7. 12. indigenous Polynesian people
  8. 13. a large volcanic crater