Across
1
Cold treeless Arctic plain
4
Land surrounded by water on three sides
5
Large slow-moving mass of ice
6
Low-lying land surrounded by higher ground
7
Deep narrow valley with steep sides
8
Half of the Earth
10
Body of water surrounded by land
Down
1
Region between the two tropic lines
2
Narrow sea inlet between cliffs
3
Low area between mountains
9
Land surrounded by water
11
Goods sold to another country