Across
- 2. zone (epipelagic) The top layer of the ocean, extending from the surface to 200 meters (660 feet) deep. This zone is full of sunlight, which fuels photosynthesis and supports the majority of marine life.
- 4. zone (abyssopelagic) Located below the midnight zone, from 4,000 to 6,000 meters deep. No light penetrates this zone, so many deep sea animals create their own light to hunt, hide, or communicate.
- 5. zone (mesopelagic) Located below the sunlight zone, from 200 to 1,000 meters deep. This zone has little to no light, making it difficult for photosynthesis to occur. Some animals in this zone, like bioluminescent fish, create their own light.
Down
- 1. zone (bathypelagic) Located below the twilight zone, from 1,000 to 4,000 meters deep. This zone is dark and cold, and is home to large animals like sperm whales and colossal squid.
- 3. zone (trenches) The deepest part of the ocean, located below the abyssal zone, from 6,000 to approximately 11,000 meters deep. The pressure in this zone is too high for most organisms to survive.