Across
1
Land surrounded by water
3
Low area between mountains
7
Large area covered with trees
8
Large slow-moving mass of ice
9
Largest river in South America
10
Piece of land jutting into the sea
13
Line dividing two countries
Down
2
Body of water surrounded by land
4
Large natural elevation of earth
5
Large natural stream of water
6
Mountain that can erupt with lava
11
Goods brought in from another country
12
One of seven major landmasses