横向
1
Where river meets the sea
4
Region surrounding the North Pole
6
Landform where river meets the sea
8
Large natural elevation of earth
11
Distance east or west of prime meridian
纵向
1
Wearing away of land by water or wind
2
Cold treeless Arctic plain
3
Flat grassland in tropical regions
5
Tool for finding directions
7
Mountain that can erupt with lava
9
Area where water covers the soil
10
Dry land with little rainfall
12
Steep rock face at edge of land