横向
1
Largest ocean on Earth
4
Distance north or south of equator
5
Goods sold to another country
6
Line dividing two countries
8
Imaginary line around the middle of Earth
9
Wearing away of land by water or wind
纵向
1
Total number of people in an area
2
Cold treeless Arctic plain
3
Large area covered with trees
7
City that is seat of government
10
Dry land with little rainfall