Across
1
Largest river in South America
5
Landform where river meets the sea
6
Land surrounded by water on three sides
7
Narrow sea inlet between cliffs
10
Wearing away of land by water or wind
Down
2
Distance east or west of prime meridian
3
Low-lying land surrounded by higher ground
4
Tool for finding directions
8
Where river meets the sea
9
Steep rock face at edge of land
11
Visual representation of an area
12
One of seven major landmasses
13
Mountain that can erupt with lava