横向
1
Imaginary line around the middle of Earth
5
Cold treeless Arctic plain
6
Mountain that can erupt with lava
8
Large natural elevation of earth
10
Region surrounding the North Pole
11
Body of water surrounded by land
纵向
2
Deep narrow valley with steep sides
3
Chain or group of islands
4
Region between the two tropic lines
7
Large body of water partly enclosed by land
9
Total number of people in an area