Across
1
Half of the Earth
7
Large area covered with trees
8
Height above sea level
9
Cold treeless Arctic plain
10
Low area between mountains
Down
2
Landform where river meets the sea
3
Raised area of land, smaller than a mountain
4
Body of water surrounded by land
5
Line dividing two countries
6
Land surrounded by water on three sides
11
Chain or group of islands