Across
1
Large natural stream of water
4
Vast body of salt water
5
Flat elevated area of land
8
Wearing away of land by water or wind
9
Region between the two tropic lines
Down
2
Low area between mountains
3
Goods sold to another country
6
Large natural elevation of earth
7
Piece of land jutting into the sea
10
Largest river in South America
11
Imaginary line around the middle of Earth