横向
1
Physical features of land
5
Body of water surrounded by land
8
Mountain that can erupt with lava
9
Height above sea level
10
Largest river in South America
12
Low-lying land surrounded by higher ground
纵向
2
Where river meets the sea
3
Deep narrow valley with steep sides
4
Seasonal heavy rainfall
6
Ocean between Americas and Europe/Africa
7
Large slow-moving mass of ice
11
Large area covered with trees
13
Region surrounding the North Pole