Across
1
Largest ocean on Earth
3
Cold treeless Arctic plain
6
Total number of people in an area
8
Height above sea level
10
Land surrounded by water
12
Piece of land jutting into the sea
Down
2
City that is seat of government
4
Goods brought in from another country
5
Deep narrow valley with steep sides
7
Largest river in South America
9
Large body of water partly enclosed by land
11
Region between the two tropic lines