Across
1
Mountain that can erupt with lava
5
Low area between mountains
6
City that is seat of government
7
Piece of land jutting into the sea
9
Large natural elevation of earth
Down
2
Wearing away of land by water or wind
3
Region surrounding the North Pole
4
Low-lying land surrounded by higher ground
8
Large body of water partly enclosed by land
10
Region between the two tropic lines
11
Deep narrow valley with steep sides