THE INTERIOR OF THE EARTH

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Across
  1. 4. THE THICKEST LAYER OF THE EARTH
  2. 5. THE PROCESS OF LEVELLING OF THE EARTH'S SURFACE
  3. 6. INNERMOST LAYER OF THE EARTH
  4. 7. THE LOWER CRUST OF THE EARTH
  5. 8. UPPERMOST LAYER OF THE EARTH
  6. 9. A NON-METALLIC MINERAL
  7. 10. THE CORE MADE UP LARGELY OF NICKEL AND IRON
Down
  1. 1. THE SEMI-SOLID UPPER LAYER OF THE MANTLE
  2. 2. RIVER OF ICE
  3. 3. THE LATIN WORD 'IGNIS' MEANS
  4. 4. THE MOLTEN ROCK MATERIAL FOUND IN THE LOWER MANTLE