Across
1
Large natural elevation of earth
4
Ridge of rock or coral near the surface
6
Half of the Earth
7
Region between the two tropic lines
10
Imaginary line around the middle of Earth
Down
2
Total number of people in an area
3
Wearing away of land by water or wind
5
Height above sea level
8
Region surrounding the North Pole
9
Low-lying land surrounded by higher ground