横向
1
Physical features of land
4
Steep rock face at edge of land
6
Vast body of salt water
7
Distance north or south of equator
8
Large natural elevation of earth
纵向
2
Large area covered with trees
3
Low area between mountains
5
Largest river in South America
9
Land surrounded by water on three sides
10
One of seven major landmasses
11
Large natural stream of water
12
Height above sea level