Across
1
Mountain that can erupt with lava
4
Area where water covers the soil
5
Flat grassland in tropical regions
9
Ridge of rock or coral near the surface
10
Wearing away of land by water or wind
Down
2
Largest hot desert in the world
3
Goods brought in from another country
6
Largest river in South America
7
Body of water surrounded by land
8
Landform where river meets the sea
11
Large natural elevation of earth