横向
1
Total number of people in an area
7
Landform where river meets the sea
8
Cold treeless Arctic plain
9
Large area covered with trees
10
Wearing away of land by water or wind
12
Large slow-moving mass of ice
纵向
2
Half of the Earth
3
Body of water surrounded by land
4
Seasonal heavy rainfall
5
City that is seat of government
6
Distance east or west of prime meridian
11
Goods sold to another country