Across
1
Largest river in South America
5
Land surrounded by water on three sides
6
Body of water surrounded by land
8
Imaginary line around the middle of Earth
9
Ridge of rock or coral near the surface
Down
2
Visual representation of an area
3
Flat grassland in tropical regions
4
Deep narrow valley with steep sides
7
Goods sold to another country
10
Cold treeless Arctic plain
11
Distance north or south of equator
12
Landform where river meets the sea