横向
1
Seasonal heavy rainfall
3
Piece of land jutting into the sea
6
Tool for finding directions
7
Region surrounding the North Pole
9
Line dividing two countries
11
Cold treeless Arctic plain
12
Height above sea level
纵向
2
Total number of people in an area
4
Deep narrow valley with steep sides
5
Largest river in South America
8
Landform where river meets the sea
10
One of seven major landmasses