Across
1
Region surrounding the North Pole
4
Line dividing two countries
5
Vast body of salt water
6
Height above sea level
7
Largest hot desert in the world
10
Deep narrow valley with steep sides
11
Region between the two tropic lines
13
Visual representation of an area
Down
2
Large natural elevation of earth
3
Half of the Earth
8
Raised area of land, smaller than a mountain
9
Where river meets the sea
12
Narrow sea inlet between cliffs