Across
1
Tool for finding directions
4
Total number of people in an area
5
Height above sea level
6
Wearing away of land by water or wind
8
Region surrounding the North Pole
12
Mountain that can erupt with lava
Down
2
Land surrounded by water
3
Vast body of salt water
7
Region near the equator
9
Long-term weather patterns of an area
10
Deep narrow valley with steep sides
11
Where river meets the sea
13
Large area covered with trees