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4 Written questions

3 Multiple choice questions

  1. top level of groundwater in an aquifer
  2. underground layers of sand, gravel, and rock that contain water
  3. process of liquid water changing to a water vapor

3 True/False questions

  1. desalinationthe removal of salt (especially from sea water)


  2. hydrospherethe portion of earth that is water (75% or 3/4)


  3. sleetpellets of ice that form when rain freezes as it falls