横向
1
Total number of people in an area
5
Flat elevated area of land
7
Deep narrow valley with steep sides
8
Long-term weather patterns of an area
9
Land surrounded by water
10
Area where water covers the soil
11
Half of the Earth
纵向
2
Large natural elevation of earth
3
Landform where river meets the sea
4
Region near the equator
6
Physical features of land
12
Height above sea level