Across
1
Largest river in South America
3
Raised area of land, smaller than a mountain
7
Goods sold to another country
8
Vast body of salt water
10
Large natural stream of water
Down
2
Distance north or south of equator
4
Low-lying land surrounded by higher ground
5
Wearing away of land by water or wind
6
Region near the equator
9
Low area between mountains