Across
1
Mountain that can erupt with lava
5
Vast body of salt water
7
Low area between mountains
8
Goods sold to another country
9
Cold treeless Arctic plain
12
Imaginary line around the middle of Earth
13
Large body of water partly enclosed by land
Down
2
Low-lying land surrounded by higher ground
3
Large area covered with trees
4
Distance east or west of prime meridian
6
Narrow sea inlet between cliffs
10
Visual representation of an area
11
Flat elevated area of land