Across
1
Largest river in South America
2
Wearing away of land by water or wind
5
Area where water covers the soil
6
Large natural stream of water
11
Tool for finding directions
Down
2
Where river meets the sea
3
Distance east or west of prime meridian
4
Large natural elevation of earth
7
City that is seat of government
8
Vast body of salt water
9
Line dividing two countries
10
Large slow-moving mass of ice