Across
1
City that is seat of government
5
Cold treeless Arctic plain
6
Vast body of salt water
7
Flat grassland in tropical regions
9
Region between the two tropic lines
Down
2
Raised area of land, smaller than a mountain
3
Ocean between Americas and Europe/Africa
4
Flat elevated area of land
8
Largest river in South America
10
Line dividing two countries
11
Wearing away of land by water or wind