Across
- 2. matter that settles to the bottom of a liquid
- 3. shallow wetlands along coastlines that are flooded regularly or occasionally with seawater
- 5. low, narrow, sandy islands that form offshore from a coastline. They protect the shore from storms
- 6. an area of waterlogged soil that tends to be peaty and fed by precipitation
- 7. a substance that provides nourishment essential for growth and the maintenance of life
- 9. free floating, autotrophic organisms that function as producers in aquatic ecosystems
- 12. of, on, or relating to the earth
- 15. a wetland without trees
- 17. ecosystems of several types in which rooted vegetation is surrounded by standing water during part of the year
- 18. relating to feeding and nutrition
- 20. an area of waterlogged soil that tends to be peaty and fed by ground water
- 22. relating to or situated on the shore of the sea or a lake
- 24. whitening of corals caused by expulsion of symbiotic algae
Down
- 1. not consisting of or deriving from living matter
- 4. a colder deeper layer of water that is not mixed
- 6. bottom of a sea or lake
- 8. a bay or drowned valley where a river empties into the sea
- 10. in water, a distinctive transition zone that separates an upper layer that is mixed by the wind and a colder, deep layer that is not mixed
- 11. relating to or derived from living matter
- 13. the setting or conditions in which a particular activity is carried on
- 14. depressions in a rocky shoreline that are flooded at high tide but cut off from the ocean at low tide
- 16. a wetland with trees
- 19. a warmer upper layer of water that is mixed by wind and warmed by the sun
- 21. zones in the vertical water column of water body
- 23. trees from genera that live in shallow salt water
- 25. a stretch of salt water separated from the sea by a low sandbank or coral reef
