横向
1
Total number of people in an area
7
Mountain that can erupt with lava
8
Large natural stream of water
9
Tool for finding directions
11
Body of water surrounded by land
12
Cold treeless Arctic plain
纵向
2
Dry land with little rainfall
3
Region between the two tropic lines
4
Land surrounded by water on three sides
5
City that is seat of government
6
Goods sold to another country
10
Ocean between Americas and Europe/Africa