Ocean Topography

2. an old volcanic island that has been weathered down and filled with water
4. an area where the oceanic and continental plates meet that is eroded where rivers empty into the ocean
7. a seemingly bottomless crack in the ocean floor formed at subduction zones
9. flat areas of the ocean floor that stretch for miles and miles
10. a seamount that has risen above water

1. the gently sloping area that extends from the shore and into the ocean
3. a steep drop off where the continental plate meets the oceanic plate
5. an underwater mountain chain that forms at a divergent plate boundary
6. the deep area between the mid-ocean-ridge that forms as two oceanic plates divide
8. an underwater volcano