water systems

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Across
  1. 6. gradual increase in the overall temperature
  2. 8. water held under soil
  3. 9. water circulates between the earth's oceans
  4. 10. envelope of gases
Down
  1. 1. the rigid outer part of the earth
  2. 2. water on earths surface
  3. 3. collects and drains off into a common outlet
  4. 4. waters on the earth's surface
  5. 5. the quality or degree of being saline
  6. 7. a slowly moving mass