Across
1
Low area between mountains
3
Wearing away of land by water or wind
7
Height above sea level
8
Area where water covers the soil
10
Region surrounding the North Pole
Down
2
Goods sold to another country
4
Deep narrow valley with steep sides
5
Raised area of land, smaller than a mountain
6
Where river meets the sea
9
Physical features of land
11
Large natural stream of water