Geography

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Across
  1. 2. Boundary transition zone between adjoining ecosystems
  2. 6. Process that either amplify or reduce climate trends
  3. 10. Past environments that represents changes in climate
  4. 12. Mineral absorbs water and expands, thus changing the mineral structure
  5. 13. Inorganic natural compound
  6. 15. After arriving in the new ecosystem, some species disrupt natives eco
  7. 16. Volume of rock that falls through the air and hits a suface
  8. 17. Breaks down silicate minerals in rock through reaction with water
  9. 18. Large basin shaped depressions
  10. 19. Large, stable, terrestrial or aqautic ecosystem classified
  11. 20. Powered by insolation and influenced by gravity
Down
  1. 1. Layers slope downward away from from the axis
  2. 3. weathering by dissolution of limestone landscapes
  3. 4. Climate forcing
  4. 5. Where carbon is stored
  5. 7. Powered by heat energyfrom within the planet
  6. 8. Differentiated into an inner core and outer core
  7. 9. Circular surface depressions
  8. 11. Transitional to the arctic tundra biome
  9. 14. Rocks on either side of the fracture