横向
1
Region surrounding the North Pole
5
Line dividing two countries
7
Distance north or south of equator
9
Total number of people in an area
10
Largest river in South America
13
Large natural stream of water
纵向
2
Tool for finding directions
3
Raised area of land, smaller than a mountain
4
Chain or group of islands
6
Ridge of rock or coral near the surface
8
Area where water covers the soil
11
Cold treeless Arctic plain
12
Goods brought in from another country