Across
- 2. zones in the vertical water column of a water body
- 3. waste or debris of any kind
- 4. the bottom of sea or lake
- 8. a bay or drowned valley where a river empties into a sea
- 9. relatively shallow region along a continent’s coast
- 10. shallow wetlands along a coastline
- 12. water that seeps into the ground
- 13. sweat
- 14. a body of permeable rock that may contain groundwater
- 19. protects islands from storms
- 20. zone exposed by low tides
- 21. vaporize
- 22. the action of breathing
- 23. has photosynthetic organisms
Down
- 1. the photic zone, reaching about 20 meters below the surface
- 2. free-floating photosynthetic plants
- 5. prominent oceanic features composed of hard, limy skeletons
- 6. water that runs of the land
- 7. sharp temperature boundary
- 11. water that condenses over land surfaces
- 15. trees from a number of genera that live in shallow salt water
- 16. whitening of corals caused by expulsion of symbiotic algae
- 17. deepest zone (up to 6,000 meters)
- 18. currents circulate nutrients from the oceans floor to the surface