Across
1
Half of the Earth
4
Low area between mountains
6
Area where water covers the soil
9
Large area covered with trees
11
Region near the equator
Down
2
Cold treeless Arctic plain
3
Largest hot desert in the world
5
Piece of land jutting into the sea
7
Region surrounding the North Pole
8
Where river meets the sea
10
Land surrounded by water on three sides