Geography

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Across
  1. 2. batman has one as a secret lair
  2. 6. an inorganic or non living natural solid compound
  3. 7. hot liquid rock beneath earth's surface
  4. 9. a fraction of earth's overall mass and the edges of bread
  5. 10. the birth of mountains
  6. 11. inclined surface also used to ski
  7. 13. the denser one goes under
  8. 14. measure of energy released from earthquake
  9. 15. a shaking of the earth due to plate tectonics
  10. 17. the study of earth's surface landforms
  11. 18. a depression or something you can fall into
Down
  1. 1. the big supercontinent believed to have existed once
  2. 2. a third of the earth's mass but only a sixth of its volume and rhymes with shore
  3. 3. an angry mountain that spews lava
  4. 4. second most prevalent greenhouse gas produced by human activities and livestock
  5. 5. rusting may make this familiar
  6. 6. 80 percent of earth's total volume
  7. 8. the study of earth's past climates and starts with a p
  8. 12. rhymes with java
  9. 16. assemblage of minerals bound together or Dwayne Johnson's wrestling name