横向
1
Wearing away of land by water or wind
4
Long-term weather patterns of an area
5
Seasonal heavy rainfall
6
City that is seat of government
7
Total number of people in an area
8
Cold treeless Arctic plain
9
Region near the equator
纵向
2
Largest hot desert in the world
3
Region surrounding the North Pole
4
One of seven major landmasses
6
Tool for finding directions