Across
1
Largest river in South America
4
One of seven major landmasses
5
Largest hot desert in the world
6
Cold treeless Arctic plain
7
Land surrounded by water
8
Line dividing two countries
10
Goods brought in from another country
11
Height above sea level
Down
1
Chain or group of islands
2
Land surrounded by water on three sides
3
Total number of people in an area
9
Ridge of rock or coral near the surface