Across
- 2. Zone/The uppermost layer of the ocean, where sunlight penetrates.\
- 4. secreted by corals.
- 7. flows
- 9. Zone/The deepest layer of the ocean, found in ocean trenches
- 12. Vent/An opening in the sea floor out of which heated mineral-rich
- 16. The rising of cold, nutrient-rich water from deep in the ocean to the
- 17. Slope/
- 18. under relatively shallow seas
- 22. Aquatic animals that can swim and move independently of water currents
- 23. floor.
- 25. A deep, narrow depression in the ocean floor, often caused by tectonic
- 26. The concentration of salts in water
Down
- 1. disturbances.
- 3. Zone/The middle layer of the ocean, receiving very little light.
- 5. steep slope where the continental shelf drops to the deep
- 6. Small and microscopic organisms drifting or floating in the sea
- 8. A layer in a body of water where the temperature changes rapidly with
- 10. Plain/A flat, almost level area of the deep-ocean basin.
- 11. Zone/The deep ocean layer, where no sunlight reaches.
- 13. A series of ocean waves with extremely long wavelengths caused by
- 14. Organisms that live on, in, or near the seabed
- 15. An underwater mountain rising from the ocean floor that does not reach
- 19. Ridge/An underwater mountain range formed by plate tectonics
- 20. surface
- 21. Reef/ A diverse underwater ecosystem held together by calcium carbonate
- 24. Shelf/The extended perimeter of each continent, which lies
- 27. Zone/The layer of the ocean at depths between 4,000 and 6,000