Across
- 3. periodically under water or where soil contains a great deal of moisture
- 5. water from showers, sinks, and cleaners
- 8. organisms such as oyster
- 12. influences neap tides
- 14. capture and holding of water
- 15. shallow, light filled area near shorelines
- 16. dominant plant life in marshes
- 17. base of food web in all aquatic ecosystems
- 18. influences spring tides
- 19. primarily driven by earth's rotation
Down
- 1. biologically rich, protected area where river meets sea
- 2. area between high and low water mark on a shore
- 4. drives surface currents
- 6. shedding of water by leaves
- 7. a species whose survival has far reaching consequences in an ecosystem
- 9. presence or absence gives signs about health of an ecosystem
- 10. free swimming organisms like fish
- 11. driven by temperature and low pressure zones
- 13. main factor separating fresh and salt water