It's a part of continent that extends beyond shoreline, under the ocean (it belongs to continent)
Mid ocean rigde
it's the bottom of the ocean where you can find the flattest areas on the Earth and mountains, volcanoes, Guyots, etc
Deep see trench
it's a huge mountain chain located in the centre of many of the Earth's oceans. The axis is called ocean rift.
Continental shelf
Continental slope
Abyssal plain
it's a big depression that extends from continental shelf to the sea floor
it's a huge depression on the sea floor formed when a plate sinks under another plate
