Deep ocean

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Across
  1. 3. Flat, vast area of the ocean floor.
  2. 6. ocean zone 6,000 meters and below
  3. 7. also known as the twilight zone
  4. 9. ooze Type of ooze found at mid-Atlantic ridges.
  5. 10. Raised geological feature of the ocean floor
  6. 11. environment located on the bottom of the ocean
Down
  1. 1. zone 4000-6000m deep
  2. 2. production of light by living organisms
  3. 4. The most abundant group of animals on the deep sea floor.
  4. 5. also known as the midnight zone
  5. 8. A dominant group on the ocean floor that includes sea stars, brittle stars, and sea cucumbers.