横向
1
Large natural stream of water
4
Largest ocean on Earth
6
Low-lying land surrounded by higher ground
9
Total number of people in an area
10
Where river meets the sea
11
Largest hot desert in the world
12
Landform where river meets the sea
纵向
2
Large slow-moving mass of ice
3
Body of water surrounded by land
5
Low area between mountains
7
Seasonal heavy rainfall
8
Visual representation of an area