横向
1
Region surrounding the North Pole
4
Cold treeless Arctic plain
5
Flat elevated area of land
7
Landform where river meets the sea
8
Large body of water partly enclosed by land
9
Wearing away of land by water or wind
11
Land surrounded by water
纵向
2
Largest hot desert in the world
3
Imaginary line around the middle of Earth
4
Physical features of land
5
Largest ocean on Earth
6
Largest river in South America
10
Dry land with little rainfall