Across
1
Land surrounded by water on three sides
2
Height above sea level
5
Physical features of land
6
Flat grassland in tropical regions
7
Area where water covers the soil
Down
2
Region surrounding the North Pole
3
Large slow-moving mass of ice
4
Largest river in South America
8
Total number of people in an area
9
Where river meets the sea
10
Large natural elevation of earth
11
Wearing away of land by water or wind
12
Ridge of rock or coral near the surface
13
Narrow sea inlet between cliffs