横向
1
Distance north or south of equator
5
Total number of people in an area
6
Landform where river meets the sea
7
Tool for finding directions
9
Where river meets the sea
12
Ridge of rock or coral near the surface
纵向
2
Largest river in South America
3
Region surrounding the North Pole
4
Flat elevated area of land
8
Half of the Earth
10
Large body of water partly enclosed by land
11
Physical features of land