1
It is an undersea extension of a continent
2
It is a step area underwater that links the continental shelf with the ocean floor
3
It is a long depression that can be thousands of metres deep.
4
A flat area under the sea
5
It is and underwater mountain range
6
It is a piece of land surrounded by water on all sides except one
7
It is a high and flat area of land
8
It is an elevation of the land
9
It is a long depression in the land
10
It is a piece of land completely surrounded by water
11
It is a flat and large area of land
12
It is a part of the land that extends into the sea
13
It is an area of sea surrounded by land on three sides.
