Across
1
City that is seat of government
6
Vast body of salt water
7
Area where water covers the soil
8
Ridge of rock or coral near the surface
9
Largest river in South America
13
Low area between mountains
Down
2
Mountain that can erupt with lava
3
Chain or group of islands
4
Flat elevated area of land
5
Land surrounded by water on three sides
10
Deep narrow valley with steep sides
11
Landform where river meets the sea
12
Large area covered with trees