Across
- 3. a mountain that breaks through the surface of water
- 4. underwater mountains formed by erupting volcanoes
- 5. deepest part of the ocean; long narrow valley
- 6. a flat area of ocean floor covered in mud, sand and plant and animal remains
- 8. meets the land and gently slopes underwater
Down
- 1. between the continental slope and the abyssal plain
- 2. a chain of underwater mountains
- 7. begins at the edge of the shelf and drops off drastically