Across
1
Piece of land jutting into the sea
3
Mountain that can erupt with lava
6
Dry land with little rainfall
9
Line dividing two countries
11
Large body of water partly enclosed by land
12
Cold treeless Arctic plain
Down
2
Flat grassland in tropical regions
4
Steep rock face at edge of land
5
Large natural stream of water
7
Goods sold to another country
8
Large area covered with trees
10
Body of water surrounded by land