Across
1
City that is seat of government
4
Vast body of salt water
8
Chain or group of islands
9
Low-lying land surrounded by higher ground
11
Region surrounding the North Pole
12
Body of water surrounded by land
Down
2
Area where water covers the soil
3
Cold treeless Arctic plain
5
Distance north or south of equator
6
Wearing away of land by water or wind
7
Largest river in South America
10
Land surrounded by water on three sides