Benchmark Review

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Across
  1. 3. body of water above the ground
  2. 4. a body of water behind a dam
  3. 7. growth of towns due to people moving
  4. 8. a body of rock that stores water
  5. 9. harmful chemicals added to water
  6. 11. pollution from not a specific spot
  7. 15. removing harmful materials from water
  8. 16. when waste makes water harmful to animals
Down
  1. 1. water thats underground
  2. 2. pollution from a specific spot
  3. 5. heating of natural
  4. 6. frozen layer of soil
  5. 10. live or dead animals added to water
  6. 12. water that is drinkable
  7. 13. seawater seeping into water supply
  8. 14. increase of the minerals in water