横向
1
Ridge of rock or coral near the surface
3
Total number of people in an area
5
Landform where river meets the sea
8
Largest ocean on Earth
9
Visual representation of an area
10
Seasonal heavy rainfall
纵向
2
Low area between mountains
4
Mountain that can erupt with lava
6
Imaginary line around the middle of Earth
7
Chain or group of islands