Environmental water

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Across
  1. 5. underground layer storing groundwater
  2. 6. relating to riverbanks
  3. 7. safe to drink
  4. 8. water-saturated ecosystem
  5. 9. wearing away of soil by water
Down
  1. 1. measure of dissolved salts in water
  2. 2. process of removing particles from water
  3. 3. study of water movement and distribution
  4. 4. land area draining into a water system
  5. 6. water flowing over land after rain