Across
1
Deep narrow valley with steep sides
6
Goods sold to another country
7
Largest hot desert in the world
8
Narrow sea inlet between cliffs
9
Imaginary line around the middle of Earth
11
Long-term weather patterns of an area
Down
2
Wearing away of land by water or wind
3
Ocean between Americas and Europe/Africa
4
Largest river in South America
5
Area where water covers the soil
10
Low area between mountains
12
Region surrounding the North Pole
13
Land surrounded by water