Across
- 3. it is the seafloor
- 6. the light emitted by organisms
- 8. it is cold and its light is dim
- 9. surface layer of the ocean that receives sunlight
- 10. an extreme ecosystem found on marine shorelines
Down
- 1. long narrow depressions on the seafloor
- 2. leads to an increase in the amount of atmospheric water vapor over the ocean
- 4. the abyssal zone is dark because there is no what?
- 5. non living
- 7. continual darkness