横向
1
Largest river in South America
3
Dry land with little rainfall
4
Tool for finding directions
5
Land surrounded by water on three sides
6
Mountain that can erupt with lava
7
Height above sea level
纵向
1
Ocean between Americas and Europe/Africa
2
Wearing away of land by water or wind
8
Large area covered with trees
9
Distance north or south of equator
10
Large natural elevation of earth