Across
1
Vast body of salt water
2
Largest river in South America
4
Low area between mountains
5
Land surrounded by water
6
Large natural stream of water
7
Low-lying land surrounded by higher ground
8
Physical features of land
9
Mountain that can erupt with lava
Down
2
Chain or group of islands
3
Largest ocean on Earth
10
Line dividing two countries
11
Where river meets the sea
