Across
1
Wearing away of land by water or wind
4
Large natural stream of water
5
Ocean between Americas and Europe/Africa
7
Flat grassland in tropical regions
9
Land surrounded by water on three sides
10
Raised area of land, smaller than a mountain
11
Distance north or south of equator
Down
2
Cold treeless Arctic plain
3
Where river meets the sea
6
Piece of land jutting into the sea
8
City that is seat of government
12
Line dividing two countries