横向
1
Height above sea level
5
Long-term weather patterns of an area
6
Flat grassland in tropical regions
7
Large natural stream of water
纵向
2
Large slow-moving mass of ice
3
Piece of land jutting into the sea
4
Steep rock face at edge of land
8
Total number of people in an area
9
Region surrounding the North Pole
10
Cold treeless Arctic plain
11
Where river meets the sea