横向
1
Region surrounding the North Pole
4
Imaginary line around the middle of Earth
5
One of seven major landmasses
6
Line dividing two countries
8
Low area between mountains
9
Cold treeless Arctic plain
12
Long-term weather patterns of an area
纵向
2
Landform where river meets the sea
3
Distance north or south of equator
7
Total number of people in an area
10
Height above sea level
11
Dry land with little rainfall