Across
1
Low-lying land surrounded by higher ground
4
Chain or group of islands
7
Area where water covers the soil
8
Goods brought in from another country
12
Largest river in South America
Down
2
Land surrounded by water
3
Mountain that can erupt with lava
5
Piece of land jutting into the sea
6
Wearing away of land by water or wind
9
Total number of people in an area
10
Height above sea level
11
Ocean between Americas and Europe/Africa
13
Land surrounded by water on three sides