Across
1
Line dividing two countries
5
Land surrounded by water on three sides
6
One of seven major landmasses
8
Flat grassland in tropical regions
Down
2
Landform where river meets the sea
3
Large natural stream of water
4
Wearing away of land by water or wind
7
Seasonal heavy rainfall
9
Distance east or west of prime meridian
10
Large area covered with trees
11
Low area between mountains
12
Narrow sea inlet between cliffs