Across
1
Visual representation of an area
3
Area where water covers the soil
4
Low-lying land surrounded by higher ground
5
Wearing away of land by water or wind
9
Half of the Earth
10
Largest hot desert in the world
12
Large slow-moving mass of ice
Down
2
Total number of people in an area
6
Ridge of rock or coral near the surface
7
Goods sold to another country
8
Landform where river meets the sea
11
Chain or group of islands