Across
1
Low-lying land surrounded by higher ground
4
City that is seat of government
5
Visual representation of an area
6
Cold treeless Arctic plain
7
Area where water covers the soil
8
Largest ocean on Earth
9
Large body of water partly enclosed by land
11
Large area covered with trees
Down
2
Distance north or south of equator
3
Largest river in South America
4
Steep rock face at edge of land
10
Region surrounding the North Pole