TERRA-TERR-GEO

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Across
  1. 2. underground
  2. 5. the study of the earth
  3. 6. out of this world
  4. 8. science of the earth
  5. 9. hard brownish red pottery
  6. 10. almost or completely surrounded by land
Down
  1. 1. a person who studies regions of the earth
  2. 3. hollow stone found on earth
  3. 4. a raised flat mound of earth
  4. 7. an area or region, or piece of land