Across
1
Total number of people in an area
4
Body of water surrounded by land
9
Area where water covers the soil
10
Flat grassland in tropical regions
11
Imaginary line around the middle of Earth
Down
2
Large slow-moving mass of ice
3
Vast body of salt water
5
Steep rock face at edge of land
6
Visual representation of an area
7
Land surrounded by water on three sides
8
Low area between mountains