Across
1
Large body of water partly enclosed by land
3
Wearing away of land by water or wind
6
Vast body of salt water
8
Largest river in South America
9
Large area covered with trees
10
Narrow sea inlet between cliffs
Down
2
Mountain that can erupt with lava
4
Line dividing two countries
5
Largest hot desert in the world
7
One of seven major landmasses