water systems

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Across
  1. 2. the action or process of draining something.
  2. 4. cycle a hydrological cycle
  3. 5. water, water present beneath Earth's surface
  4. 7. warming a long-term rise in the average temperature
  5. 8. the rigid outer part of the earth,
  6. 9. Geology and landforms
Down
  1. 1. a scientist who researches the distribution, circulation and physical properties
  2. 3. the gases surrounding a star
  3. 5. apersistent body of dense ice that is constantly moving
  4. 6. the, saltiness of a body of water