横向
1
Low-lying land surrounded by higher ground
3
Tool for finding directions
5
Wearing away of land by water or wind
6
Long-term weather patterns of an area
7
Area where water covers the soil
纵向
1
Line dividing two countries
2
Seasonal heavy rainfall
4
Largest river in South America
8
Visual representation of an area
9
Large natural elevation of earth
10
Region between the two tropic lines