Across
1
Land surrounded by water
5
Total number of people in an area
6
Large natural stream of water
7
Low area between mountains
9
Region surrounding the North Pole
Down
2
Narrow sea inlet between cliffs
3
Imaginary line around the middle of Earth
4
Long-term weather patterns of an area
8
One of seven major landmasses
10
Height above sea level
11
Region between the two tropic lines