Across
1
Height above sea level
3
Mountain that can erupt with lava
7
Steep rock face at edge of land
9
Ocean between Americas and Europe/Africa
10
Ridge of rock or coral near the surface
11
Region surrounding the North Pole
12
Land surrounded by water on three sides
Down
2
Flat grassland in tropical regions
4
Line dividing two countries
5
Narrow sea inlet between cliffs
6
One of seven major landmasses
8
City that is seat of government