Across
1
Dry land with little rainfall
3
Deep narrow valley with steep sides
6
Landform where river meets the sea
9
Goods sold to another country
13
Region surrounding the North Pole
Down
2
Cold treeless Arctic plain
3
Steep rock face at edge of land
4
Low-lying land surrounded by higher ground
5
Line dividing two countries
7
Narrow sea inlet between cliffs
8
Raised area of land, smaller than a mountain
10
Largest hot desert in the world
11
Mountain that can erupt with lava
12
Region near the equator