Parts of the Earth

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Across
  1. 4. the rigid combination of crust and upper mantle
  2. 6. the plate boundary where plates spread apart
  3. 8. a break in Earth's crust where tectonic plates interact
  4. 9. Earth's lithosphere is broken into these separate sections
  5. 10. continental crust is made up of this rock
Down
  1. 1. the transfer of energy through space
  2. 2. the process by which oceanic crust sinks beneath continental crust
  3. 3. proposed the first theory of continental drift
  4. 5. the plate boundary where plates slip past each other
  5. 7. the plate boundary where plates come together