Chapter 3

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Across
  1. 2. Lands are constantly being created and destroyed by ____ forces.
  2. 5. the ability to do work.
  3. 7. waves that are produced by earthquakes.
  4. 8. a relatively thin envelope of gases that forms earth's outermost layer.
  5. 9. contains all of earth's water.
  6. 11. the layer of rock that forms earth's outer skin.
  7. 14. forces that construct, or build up, mountains
Down
  1. 1. a dark, fine-grained rock.
  2. 3. results from a force pressing on an area.
  3. 4. a rock that usually is a light color and has coarse grains.
  4. 6. makes up all living organisms in earth
  5. 10. forces such as ice, rain, wind, and changing temperatures wear down, or destroy, landmasses.
  6. 12. one of earths layers and is made up of hot rock.
  7. 13. Earth's skeleton.