横向
1
Ridge of rock or coral near the surface
2
Mountain that can erupt with lava
3
Narrow sea inlet between cliffs
6
Total number of people in an area
7
Line dividing two countries
纵向
1
Large natural stream of water
4
Long-term weather patterns of an area
5
Physical features of land
8
Dry land with little rainfall
9
Distance north or south of equator