11. Past the eastern end of the rise, the sea floor drops away to the abyssal plain . 12. Some may extend seawards across continental shelves for hundreds of kilometres before reaching the abyssal plain . 13. It has been estimated that well over 10, 000 may exist on continental slopes and abyssal plains . 14. Cephalopods occupy most of the depth of the ocean, from the abyssal plain to the sea surface. 15. Beyond the continental rise stretches the abyssal plain , an extremely deep and flat area of the sea floor. 16. Further out are the abyssal plains . 17. He sends the Justice League to the abyssal plain , while he attempts to sink the city of Boston. 18. Owing in part to their vast size, abyssal plains are currently believed to be a major reservoir of biodiversity. 19. Below the slope is the "'continental rise "', which finally merges into the deep ocean floor, the abyssal plain . 20. A great opportunity for such wiring lies in old telephone cables that criss-cross the sea's abyssal plains , Gagosian said.
