Vocaularies

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Across
  1. 4. mixed water
  2. 5. surface organism
  3. 7. periodically underwater
  4. 9. bottom organism
  5. 10. free swimmers
  6. 11. along shoreline
Down
  1. 1. tropical plants
  2. 2. increase nutrients
  3. 3. tiny animals
  4. 6. estuary plants
  5. 8. near shore
  6. 9. bottom lake