横向
1
Largest river in South America
4
Narrow sea inlet between cliffs
5
Large natural elevation of earth
6
Wearing away of land by water or wind
7
Region near the equator
纵向
1
Region surrounding the North Pole
2
Tool for finding directions
3
Line dividing two countries
8
Mountain that can erupt with lava
9
Raised area of land, smaller than a mountain
10
Vast body of salt water
11
Area where water covers the soil
12
Physical features of land