Across
1
Largest river in South America
2
Total number of people in an area
4
Region surrounding the North Pole
5
Body of water surrounded by land
6
Region near the equator
8
Steep rock face at edge of land
10
Distance north or south of equator
12
Height above sea level
Down
2
Land surrounded by water on three sides
3
Cold treeless Arctic plain
4
Ocean between Americas and Europe/Africa
7
Land surrounded by water
9
Flat grassland in tropical regions
11
Large area covered with trees