横向
1
Physical features of land
5
Large natural elevation of earth
7
Deep narrow valley with steep sides
8
Height above sea level
9
Landform where river meets the sea
11
Large body of water partly enclosed by land
12
Large natural stream of water
纵向
2
Largest ocean on Earth
3
Total number of people in an area
4
Seasonal heavy rainfall
6
Region near the equator
10
Distance east or west of prime meridian