Across
1
Wearing away of land by water or wind
4
Region surrounding the North Pole
5
Largest hot desert in the world
8
Area where water covers the soil
9
Physical features of land
10
Large natural stream of water
Down
1
Imaginary line around the middle of Earth
2
Total number of people in an area
3
Deep narrow valley with steep sides
6
Where river meets the sea
7
Region between the two tropic lines