Across
1
Ocean between Americas and Europe/Africa
5
Ridge of rock or coral near the surface
7
Visual representation of an area
8
Body of water surrounded by land
9
Largest river in South America
Down
2
Low area between mountains
3
Wearing away of land by water or wind
4
Total number of people in an area
6
Cold treeless Arctic plain
10
Steep rock face at edge of land
11
Vast body of salt water
12
Region near the equator