Across
1
Wearing away of land by water or wind
5
Dry land with little rainfall
6
Largest ocean on Earth
7
Body of water surrounded by land
9
Large slow-moving mass of ice
11
Mountain that can erupt with lava
13
Land surrounded by water on three sides
Down
2
Large natural elevation of earth
3
Piece of land jutting into the sea
4
Largest river in South America
8
Area where water covers the soil
10
Height above sea level
12
Where river meets the sea