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