横向
1
Wearing away of land by water or wind
5
Dry land with little rainfall
6
Vast body of salt water
7
Landform where river meets the sea
10
Large body of water partly enclosed by land
纵向
2
Total number of people in an area
3
Large area covered with trees
4
Cold treeless Arctic plain
8
Narrow sea inlet between cliffs
9
Land surrounded by water