横向
1
Total number of people in an area
5
Largest ocean on Earth
7
Ocean between Americas and Europe/Africa
8
Flat elevated area of land
10
Large slow-moving mass of ice
11
Region near the equator
12
Steep rock face at edge of land
纵向
2
One of seven major landmasses
3
Long-term weather patterns of an area
4
Region between the two tropic lines
6
Deep narrow valley with steep sides
9
Landform where river meets the sea
13
Line dividing two countries
