Across
- 5. the kind of long, narrow islands formed parallel to a coastline
- 6. of, on or related to the earth
- 8. areas of saturated ground composed of layers of accumulated, undecayed vegetation
- 9. tiny, freefloating photosynthetic plants
- 10. plants whose leaves emerge above the water
- 12. the highest pelagic zone containing photosynethic organisms
- 16. special bogs that are fed by groundwater
- 19. a simple aquatic plant without roots, stems, or leaves
- 20. the big ball of fire in space that causes evaporation
- 21. the ____ cycle is water's path through our environment
- 22. the deeper layer of lakes that is not warmed by the sun and mixed by wind
- 24. the middle pelagic zone
Down
- 1. cover nearly three fourths of earth's surface
- 2. water that is useful for drinking and irrigation
- 3. special variety of trees that grow in salt water
- 4. occurring at the bottom of a sea or lake
- 5. the lowest pelagic zone
- 7. bays where rivers empty into the sea
- 11. liquid waste or sewage discharged into a river or the sea
- 13. name of the submarine that made deep sea discoveries in 1977
- 14. a clear liquid that composes lakes and rivers
- 15. shorelines are known as _______ zones
- 17. the shallow, warmer upper layer of lakes
- 18. also known as wooded wetlands
- 23. occuring in the vertical water column of a water body