横向
1
Imaginary line around the middle of Earth
2
Largest ocean on Earth
4
Visual representation of an area
5
Cold treeless Arctic plain
6
One of seven major landmasses
7
Large slow-moving mass of ice
纵向
2
Total number of people in an area
3
Large natural stream of water
6
Tool for finding directions
8
Largest river in South America
9
Raised area of land, smaller than a mountain