Across
1
Distance east or west of prime meridian
6
Cold treeless Arctic plain
8
Narrow sea inlet between cliffs
9
Region surrounding the North Pole
Down
2
Large slow-moving mass of ice
3
Flat elevated area of land
4
Large natural stream of water
5
Large natural elevation of earth
7
Deep narrow valley with steep sides
8
Large area covered with trees
10
Imaginary line around the middle of Earth
11
Chain or group of islands