Across
1
Height above sea level
4
Region near the equator
6
Large natural elevation of earth
8
Deep narrow valley with steep sides
9
Wearing away of land by water or wind
10
Cold treeless Arctic plain
12
Narrow sea inlet between cliffs
Down
1
Region surrounding the North Pole
2
Large area covered with trees
3
Physical features of land
5
Flat elevated area of land
7
Distance north or south of equator
11
Seasonal heavy rainfall
13
Large natural stream of water