Across
1
Largest river in South America
5
City that is seat of government
6
Vast body of salt water
7
Goods sold to another country
8
Flat elevated area of land
9
Imaginary line around the middle of Earth
10
Long-term weather patterns of an area
12
Distance east or west of prime meridian
13
Land surrounded by water
Down
2
Where river meets the sea
3
Chain or group of islands
4
Wearing away of land by water or wind
11
Cold treeless Arctic plain