Across
1
Dry land with little rainfall
6
Half of the Earth
8
Region surrounding the North Pole
9
Large slow-moving mass of ice
10
Land surrounded by water on three sides
11
Cold treeless Arctic plain
Down
2
Goods sold to another country
3
Narrow sea inlet between cliffs
4
Large natural elevation of earth
5
Region between the two tropic lines
7
Flat grassland in tropical regions