Across
1
Distance east or west of prime meridian
4
Steep rock face at edge of land
7
Land surrounded by water
8
Largest hot desert in the world
9
Line dividing two countries
10
Cold treeless Arctic plain
11
Large natural stream of water
Down
2
Largest ocean on Earth
3
Flat elevated area of land
4
Long-term weather patterns of an area
5
Wearing away of land by water or wind
6
Landform where river meets the sea
12
Land surrounded by water on three sides