Across
1
Ridge of rock or coral near the surface
4
Line dividing two countries
5
Region between the two tropic lines
6
Height above sea level
8
Area where water covers the soil
11
Land surrounded by water on three sides
Down
2
Large slow-moving mass of ice
3
Where river meets the sea
4
Low-lying land surrounded by higher ground
7
Low area between mountains
9
Region surrounding the North Pole
10
Wearing away of land by water or wind
12
Visual representation of an area
13
Large body of water partly enclosed by land