Across
1
Steep rock face at edge of land
3
Low area between mountains
5
Flat grassland in tropical regions
6
Low-lying land surrounded by higher ground
7
Narrow sea inlet between cliffs
9
Goods sold to another country
10
Large natural stream of water
11
One of seven major landmasses
Down
2
Land surrounded by water on three sides
4
Large area covered with trees
6
Line dividing two countries
8
Vast body of salt water