Across
1
Low area between mountains
4
Mountain that can erupt with lava
6
Distance north or south of equator
7
Steep rock face at edge of land
8
Ridge of rock or coral near the surface
11
Land surrounded by water
Down
2
Largest hot desert in the world
3
Large area covered with trees
5
Body of water surrounded by land
9
Vast body of salt water
10
Height above sea level