GADOLA4CD

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Across
  1. 3. SPLITS NORTHERN AND SOUTHERN
  2. 8. NIGHT AND DAY ARE EQUAL
  3. 9. FIELD IS MAGNETIC
  4. 10. DENSER CRUST
  5. 12. SPINNING ON AXIS
  6. 16. HALF OF THE EARTH
  7. 17. AWAY FROM
  8. 18. LIQUID LAYER
Down
  1. 1. CLOSE TO
  2. 2. VERTICAL
  3. 4. INNERMOST LAYER
  4. 5. THINNEST LAYER
  5. 6. PASSAGE OF TIME
  6. 7. LONGEST DAY
  7. 11. BELOW THE LITHOSPHERE
  8. 13. BULK OF THE INTERIOR
  9. 14. OUTER LAYER OF EARTH
  10. 15. SHORTEST DAY