Water

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Across
  1. 4. the path of water through the environment
  2. 7. bays where rivers empty into the sea
  3. 9. ________ zones compromise the water column
  4. 12. free-floating photosynthetic plants
  5. 13. depressions in a rocky shoreline that are flooded at high tide but retain some water at low tide
  6. 14. the open ocean is referred to as a
  7. 17. plankton, algae, fish, and other organisms that die and fall to the ocean floor
  8. 20. the _______ Sea is known for its free-floating mats of brown algae
  9. 21. ______ zone is the shorelines
  10. 23. the upper sunlit layers (about 20 meters deep)
  11. 24. ______
  12. 25. this happens when corals expel their algal partner and then die
Down
  1. 1. ___________ zone has photosynthetic
  2. 2. shallow wetlands flooded regularly or occasionally with salt water
  3. 3. _____ zone to 4000 m deep
  4. 5. water evaporates over the ocean more than it does over ______
  5. 6. water evaporates here more than it does in higher altitudes
  6. 8. low, narrow, sandy islands that form parallel to a coastline
  7. 10. the undersea area
  8. 11. ________ zone is the area exposed by low tides
  9. 15. vertical _________ is a key feature of aquatic ecosystems, mainly because light and temp. decrease rapidly with depth
  10. 16. special variety of trees that grow in salt water
  11. 18. where all water will ultimately return to
  12. 19. ________ zone is deeper than 6000 m
  13. 22. best-known marine ecosystem
  14. 24. _______ communities occur on the bottom of the ocean