横向
1
Large slow-moving mass of ice
5
Cold treeless Arctic plain
6
City that is seat of government
7
Deep narrow valley with steep sides
纵向
2
Ocean between Americas and Europe/Africa
3
Raised area of land, smaller than a mountain
4
Large area covered with trees
8
Dry land with little rainfall
9
Mountain that can erupt with lava
10
Largest ocean on Earth