Isaiah Water Crossword

8. Zones in the vertical water column of a water body.
9. Prominent oceanic features composed of hard, limy skeletons produced by coral animals; usually formed along edges of shallow, submerged ocean banks or along shelves in warm, shallow, tropical seas.
11. The warmer, upper layer of a lake.
12. The natural process by which water is purified and made fresh through evaporation and precipitation. This cycle provides all the freshwater available for biological life.
14. Differing conditions from upper to lower layers.
17. The middle pelagic zone is the _________ zone.
19. Wetland without trees; in North America, this type of land is characterized by cattails and rushes.
21. Ecosystems of several types in which rooted vegetation is surrounded by standing water during part of the year. See also swamp, marsh, bog, fen.
22. Below the bathypelagic zone is the _______ zone.
23. Microscopic, free-floating, autotrophic organisms that function as producers in aquatic ecosystems.
24. Depressions in a rocky shoreline that are flooded at high tide but cut off from the ocean at low tide. They often have a rich collection of marine life.
25. Whitening of corals caused by expulsion of symbiotic algae—often resulting from high water temperatures, pollution, or disease.

1. The lowest pelagic zone is the _______ zone.
2. In water, a distinctive temperature transition zone that separates an upper layer that is mixed by the wind (the epilimnion) and a colder, deep layer that is not mixed (the hypolimnion).
3. Below the abyssal zone is the ______ zone.
4. Productivity is (higher/lower) in colder oceans
5. They carry nutrients and phytoplankton far from shore.
6. A wetland with trees, such as the extensive swamp forests of the southern United States.
7. Low, narrow, sandy islands that form offshore from a coastline. They protect the shore from storms.
10. Shallow wetlands along coastlines that are flooded regularly or occasionally with seawater.
13. Trees from a number of genera that live in shallow salt water.
15. The colder, lower layer of a lake.
16. A bay or drowned valley where a river empties into the sea.
18. The top most pelagic zone is the _________ zone.
20. The bottom of a sea or lake.