横向
1
Raised area of land, smaller than a mountain
3
Largest river in South America
4
Half of the Earth
6
Vast body of salt water
7
Largest ocean on Earth
12
Cold treeless Arctic plain
纵向
2
City that is seat of government
3
Height above sea level
5
Body of water surrounded by land
8
Tool for finding directions
9
Flat grassland in tropical regions
10
Largest hot desert in the world
11
Distance north or south of equator