Across
1
Wearing away of land by water or wind
2
Physical features of land
5
Deep narrow valley with steep sides
8
Chain or group of islands
9
Tool for finding directions
11
Steep rock face at edge of land
12
Dry land with little rainfall
Down
2
Cold treeless Arctic plain
3
Raised area of land, smaller than a mountain
4
Land surrounded by water
6
Large natural elevation of earth
7
Large natural stream of water
10
Imaginary line around the middle of Earth