横向
1
Physical features of land
5
Imaginary line around the middle of Earth
6
City that is seat of government
7
Height above sea level
11
Line dividing two countries
纵向
1
Region near the equator
2
Area where water covers the soil
3
One of seven major landmasses
4
Where river meets the sea
8
Total number of people in an area
9
Low-lying land surrounded by higher ground
10
Largest ocean on Earth
12
Cold treeless Arctic plain
13
Dry land with little rainfall