Across
1
Largest hot desert in the world
5
Narrow sea inlet between cliffs
6
Cold treeless Arctic plain
7
Large natural elevation of earth
9
Where river meets the sea
11
Height above sea level
12
Long-term weather patterns of an area
Down
2
Largest river in South America
3
Total number of people in an area
4
Piece of land jutting into the sea
6
Region between the two tropic lines
8
Land surrounded by water
10
Imaginary line around the middle of Earth