Across
- 2. the zone of the open ocean between 4000 and 6000m deep with near freezing temperatures and intense pressure which receives no sunlight. Also known as the aphotic zone.
- 4. the lowest depth region in any body of water including the surface of the substrate.
- 9. surface layer of the ocean which receives sunlight and the only layer where photosynthesis takes place. 0 - 200 m
- 10. the zone of the open ocean between 200 and 1000m deep which receives very little sunlight. Also known as the disphotic or twilight zone.
- 11. smaller and less deep bodies of seawater that are partially enclosed by land; they are found where the ocean and land meet
- 12. a natural environment that absorbs carbon dioxide from the atmosphere faster than it releases it.
- 14. is the area that lies above the continental shelf. The water is not very deep. There are plenty of nutrients and sunlight. Many organisms live in this zone.
- 15. the zone of the open ocean between 0 and 200m deep which receives enough sunlight for photosynthesis. Also known as the photic zone
Down
- 1. the biochemical release of light by living organisms. A remarkable adaptation.
- 3. a continuous mass of seawater on the Earth’s surface, its boundaries formed by continental land masses, ridges on the ocean floor or the equator
- 5. benefits people obtain from ecosystem, including food, flood regulation, climate control and water purification
- 6. the combination of all major oceans into one large, interconnected body of water that encircles the world’s continents
- 7. Only a small amount of light penetrates beyond this depth. The zone between 200 meters and 1,000 meters is usually referred to as the “twilight” zone, but is officially the disphotic zone. In this zone, the intensity of light rapidly dissipates as depth increases.
- 8. area below 1000 m, sunlight does not penetrate.
- 13. the community of organisms found in the benthic zone.