横向
1
Low area between mountains
4
Flat elevated area of land
5
Total number of people in an area
6
Vast body of salt water
7
Imaginary line around the middle of Earth
9
Physical features of land
11
Large body of water partly enclosed by land
纵向
2
Largest hot desert in the world
3
Large area covered with trees
7
Where river meets the sea
8
City that is seat of government
10
Land surrounded by water