Across
1
Cold treeless Arctic plain
2
Steep rock face at edge of land
5
Raised area of land, smaller than a mountain
6
Line dividing two countries
7
Narrow sea inlet between cliffs
10
Half of the Earth
11
Dry land with little rainfall
Down
2
Deep narrow valley with steep sides
3
Height above sea level
4
Ridge of rock or coral near the surface
8
Large natural elevation of earth
9
Area where water covers the soil
12
Physical features of land