Across
1
Steep rock face at edge of land
3
Distance north or south of equator
4
Wearing away of land by water or wind
5
Ocean between Americas and Europe/Africa
10
Mountain that can erupt with lava
11
Ridge of rock or coral near the surface
Down
2
Total number of people in an area
6
Height above sea level
7
Large area covered with trees
8
Deep narrow valley with steep sides
9
Largest hot desert in the world