横向
1
Dry land with little rainfall
3
Total number of people in an area
4
Raised area of land, smaller than a mountain
6
Imaginary line around the middle of Earth
7
Ridge of rock or coral near the surface
8
Wearing away of land by water or wind
9
City that is seat of government
纵向
2
Distance north or south of equator
3
Flat elevated area of land
5
Physical features of land