横向
1
Tool for finding directions
4
Long-term weather patterns of an area
5
Wearing away of land by water or wind
6
Total number of people in an area
7
Flat grassland in tropical regions
9
Dry land with little rainfall
10
Region surrounding the North Pole
纵向
2
Distance east or west of prime meridian
3
Cold treeless Arctic plain
8
Low-lying land surrounded by higher ground
11
Large slow-moving mass of ice