横向
1
Area where water covers the soil
3
Seasonal heavy rainfall
5
Raised area of land, smaller than a mountain
7
Imaginary line around the middle of Earth
9
Flat elevated area of land
10
Low area between mountains
12
Mountain that can erupt with lava
纵向
2
Tool for finding directions
4
Distance east or west of prime meridian
6
Largest river in South America
8
Physical features of land
11
Dry land with little rainfall