Across
1
Total number of people in an area
6
Where river meets the sea
7
Region surrounding the North Pole
8
Landform where river meets the sea
9
Dry land with little rainfall
10
Steep rock face at edge of land
11
City that is seat of government
13
Flat elevated area of land
Down
2
Raised area of land, smaller than a mountain
3
Height above sea level
4
Flat grassland in tropical regions
5
Half of the Earth
12
Largest hot desert in the world