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Across 2. the part of the earth we live on 4. forms when two crustallithospheric plates slide past each other 5. innermost hottest part of the earth 9. theory of the formation and plates that cover the earths surface. 13. planet we live on 15. forms when two crustal lithospheric plates move apart 16. bottom of the mantle 17. upper zone of the earth's core 18. the theory that all continents are fragments of pangaea now drifting apart.

Down 1. states that youngest rocks of ocean floor are at diverging bounderies , moving outward 2. forms when two crustal lithospheric plates come together 3. the outer shell of earth that extends to a depth of 100km 6. the partially melted layer of the mantle that underlies the lithosphere 7. a number of rigid , but moving,pieces of the earths surface. 8. center of the mantle 10. layer of igneous, sedimentary, and metamorphic rocks 11. higher part of the mantle 12. crust that lays under water 14. continents as a whole