Across
- 2. Deep Sea___communities that metabolize sulfur
- 4. zone comprised of water column
- 5. shallow wetlands
- 6. zone with photosynthetic organisms; Top
- 9. zone with photosynthetic organisms; Bottom
- 10. Coral _____ caused by elevated water temp.
- 12. Sea known for floating brown mats of algae
- 14. Zone with no oxygen in water
- 15. zone with photosynthetic organisms; Middle
- 16. _____cycle: path of water in an environment
- 17. other item used in photosynthesis besides carbon
- 19. Fish farming
- 21. Submarine used in 1977
- 22. fraction of all marine life reproduce in estuaries
Down
- 1. communities on bottom
- 3. Zone below 4000m
- 4. Tiny free floating photosynthetic plants
- 7. Bay where rivers empty into sea
- 8. besides water other main cause of erosion on beaches
- 9. Island that is low narrow and sandy
- 11. special variety of trees; grow in water
- 13. Zone below Abyssal
- 15. Rivers ___ Bottom supports plant life
- 18. ____ cycle: path of carbon in environment
- 20. Calcium Carbonate; Chemical name
- 22. approx number of dead zones