Across
1
Dry land with little rainfall
4
Cold treeless Arctic plain
5
Tool for finding directions
6
Raised area of land, smaller than a mountain
7
Low-lying land surrounded by higher ground
8
Region between the two tropic lines
Down
2
Ocean between Americas and Europe/Africa
3
Land surrounded by water on three sides
9
Total number of people in an area
10
Land surrounded by water
11
Piece of land jutting into the sea