Across
- 4. A long, narrow, and steep-sided depression in the ocean floor, formed at a subduction zone where one tectonic plate slides beneath another
- 5. An isolated underwater volcanic mountain with a flat top.
- 7. A large, flat region on the ocean floor that's located at the base of a continental rise.
- 10. A submerged area next to a continent comprising the continental shelf, continental slope, and continental rise.
- 12. A shallow, underwater extension of a continent that gradually slopes from the shoreline.
Down
- 1. A steep sloping surface seaward of the continental shelf.
- 2. Formed by plate tectonics, this continuous range of undersea volcanic mountains encircles the globe almost entirely underwater.
- 3. A narrow and deep depression on the ocean floor as a result of plate tectonics
- 6. A gently sloping depositional surface at the base of the continental slope.
- 8. A volcanic peak rising less than 1 km above the ocean floor.
- 9. A V-shaped underwater valley, typically found along continental margins, that is formed by erosion from turbidity currents
- 11. A ring-shaped coral reef that forms as an old volcano erodes, leaving behind a shallow lagoon.