Aquatic

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Across
  1. 5. – underground layer that holds water
  2. 6. – related to the sea
  3. 9. – a large sea wave caused by seismic activity
  4. 11. – the saltiness of water
  5. 12. – the process of adding water
  6. 14. – supplying water to crops
  7. 15. – simple plants growing in water
  8. 17. – cloudiness in water caused by particles
  9. 19. – relating to water
Down
  1. 1. – a man-made lake for storing water
  2. 2. – marine organisms forming reefs
  3. 3. – particles settled at the bottom of water
  4. 4. – removing salt from seawater
  5. 7. – the ability to float in water
  6. 8. – process of removing impurities from water
  7. 10. – prolonged absence of rainfall
  8. 13. – small waves on the surface of water
  9. 16. – where freshwater meets saltwater
  10. 18. – tiny organisms drifting in water
  11. 20. – flows of water within a larger body