Across
1
Line dividing two countries
4
Land surrounded by water on three sides
5
Large slow-moving mass of ice
6
Cold treeless Arctic plain
8
Area where water covers the soil
Down
2
Long-term weather patterns of an area
3
Large area covered with trees
4
Total number of people in an area
7
Seasonal heavy rainfall
9
Wearing away of land by water or wind
10
Region surrounding the North Pole
11
Tool for finding directions