Across
1
Large natural elevation of earth
4
Region between the two tropic lines
6
Ridge of rock or coral near the surface
8
Large body of water partly enclosed by land
9
Long-term weather patterns of an area
Down
2
Body of water surrounded by land
3
Mountain that can erupt with lava
5
Region surrounding the North Pole
6
Large natural stream of water
7
Total number of people in an area
10
Where river meets the sea
11
Low area between mountains
12
Deep narrow valley with steep sides