横向
1
Total number of people in an area
5
Imaginary line around the middle of Earth
6
Physical features of land
9
Cold treeless Arctic plain
纵向
2
Where river meets the sea
3
Piece of land jutting into the sea
4
Tool for finding directions
5
Goods sold to another country
7
Distance north or south of equator
8
Large slow-moving mass of ice
10
Ocean between Americas and Europe/Africa
11
Flat elevated area of land