Ocean Topography

4. What is the lowland area that forms when tectonic plates move apart?
6. What type of crust is found beneath the continents?
11. What geological structures are found along the mid-ocean ridge?
13. What is the steep seafloor region that separates the continental shelf from the deep ocean basin?
15. What is the name of the area in the Pacific Ocean known for its deep ocean trenches?
16. What is another mineral deposit found at the mid-ocean ridge?
18. What is the longest and largest mountain range on Earth found under the ocean?
20. What valuable mineral is found at the mid-ocean ridge?
21. What is the name of the deepest part of the ocean (Hint: _____________ trench)?
22. What type of tectonics creates rift valleys?

1. There are two types of animals in the abyssal plain, vertebrates and __________________.
2. What is the process called when one tectonic plate is forced beneath another?
3. What is the low-relief zone of accumulated sediments between the continental slope and abyssal plain?
5. What is the flat, muddy region on the ocean floor that covers more than half of the Earth's surface?
7. What is the long, narrow, steep depression in the ocean floor created by tectonic plate movement?
8. What type of vents are found at the mid-ocean ridge?
9. What is the submerged part of a continent called?
10. What type of TINY life is mainly found in the abyssal plain?
12. What type of crust is found beneath the ocean?
14. What is the term for particles of organic or inorganic matter that accumulate on the ocean floor?
17. What geological feature is found on the continental slope?
19. What is a large underwater mountain that rises from the ocean floor but doesn't reach the surface?