Across
1
Vast body of salt water
6
Largest hot desert in the world
7
Cold treeless Arctic plain
8
Large natural elevation of earth
9
Largest ocean on Earth
10
Visual representation of an area
11
Ridge of rock or coral near the surface
Down
2
Largest river in South America
3
Piece of land jutting into the sea
4
Wearing away of land by water or wind
5
Chain or group of islands