横向
1
Landform where river meets the sea
4
Vast body of salt water
5
Total number of people in an area
7
One of seven major landmasses
8
Flat elevated area of land
10
Large natural stream of water
纵向
2
Region surrounding the North Pole
3
Height above sea level
6
Raised area of land, smaller than a mountain
9
Cold treeless Arctic plain