Across
1
Wearing away of land by water or wind
5
City that is seat of government
8
Cold treeless Arctic plain
9
Goods brought in from another country
10
Large body of water partly enclosed by land
11
Largest hot desert in the world
12
Vast body of salt water
Down
2
Line dividing two countries
3
Region surrounding the North Pole
4
Distance east or west of prime meridian
6
Land surrounded by water
7
Tool for finding directions
13
Low-lying land surrounded by higher ground