Across
1
Wearing away of land by water or wind
4
Steep rock face at edge of land
6
Ocean between Americas and Europe/Africa
8
Flat grassland in tropical regions
11
Line dividing two countries
Down
1
Goods sold to another country
2
Largest ocean on Earth
3
Largest river in South America
5
Mountain that can erupt with lava
7
Large body of water partly enclosed by land
9
Area where water covers the soil
10
Land surrounded by water