Across
1
Line dividing two countries
4
Mountain that can erupt with lava
5
Large area covered with trees
7
Chain or group of islands
8
Total number of people in an area
10
Landform where river meets the sea
Down
2
Vast body of salt water
3
Goods sold to another country
5
Narrow sea inlet between cliffs
6
Largest river in South America
9
Region surrounding the North Pole
11
Largest ocean on Earth
12
Low area between mountains
13
Large natural elevation of earth