Across
1
Largest river in South America
4
Dry land with little rainfall
8
Seasonal heavy rainfall
9
Large natural elevation of earth
10
Imaginary line around the middle of Earth
12
Deep narrow valley with steep sides
Down
2
Total number of people in an area
3
Physical features of land
5
One of seven major landmasses
6
Distance north or south of equator
7
Tool for finding directions
11
Ridge of rock or coral near the surface
12
Steep rock face at edge of land
13
Flat grassland in tropical regions