Across
- 3. A long narrow deep depression in the ocean floor.
- 5. The slope between the outer edge of the continental shelf and the deep ocean floor.
- 6. A large area of extremely flat or gently sloping ocean floor just offshore of a continent
- 7. Formed by a build-up of cool lava, breaks the surface of the ocean.
Down
- 1. The area of seabed where the sea is relatively shallow compared to the open ocean.
- 2. A fissure in the surface of a planet from which geothermally heated water is released.
- 4. An underwater mountain range formed by plate tectonics.