Geography puzzle

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Across
  1. 3. main directions (N, S, E, W)
  2. 5. half of the earth
  3. 7. smallest continent
  4. 11. an exact location
  5. 12. in between directions (NE, NW, SE, SW)
  6. 15. line that divides the earth into the northern and southern hemispheres
  7. 16. county Chittenango is located within
Down
  1. 1. line that divides the earth into the eastern and western hemispheres
  2. 2. number of hemispheres
  3. 4. largest continent
  4. 6. anything from nature that is useful
  5. 8. largest ocean
  6. 9. Continent the USA is located within
  7. 10. can be reused
  8. 13. ocean to the east of New York
  9. 14. study of the earth