Across
1
Large natural elevation of earth
4
Total number of people in an area
7
Physical features of land
8
Steep rock face at edge of land
9
Low-lying land surrounded by higher ground
10
Seasonal heavy rainfall
Down
2
Largest river in South America
3
Imaginary line around the middle of Earth
4
Land surrounded by water on three sides
5
Region near the equator
6
Area where water covers the soil
11
Piece of land jutting into the sea