横向
1
Ridge of rock or coral near the surface
4
Tool for finding directions
5
Region between the two tropic lines
11
Body of water surrounded by land
纵向
2
Wearing away of land by water or wind
3
Landform where river meets the sea
6
Largest ocean on Earth
7
Height above sea level
8
Largest hot desert in the world
9
Seasonal heavy rainfall
10
Large natural elevation of earth