横向
1
Region near the equator
5
Land surrounded by water
6
Largest hot desert in the world
7
Raised area of land, smaller than a mountain
8
Ridge of rock or coral near the surface
9
Distance north or south of equator
11
Largest ocean on Earth
纵向
2
Area where water covers the soil
3
Deep narrow valley with steep sides
4
Region between the two tropic lines
10
Mountain that can erupt with lava
12
Total number of people in an area