Across
1
Half of the Earth
2
Large area covered with trees
6
Imaginary line around the middle of Earth
7
Distance north or south of equator
8
Largest river in South America
10
Dry land with little rainfall
Down
2
Narrow sea inlet between cliffs
3
Distance east or west of prime meridian
4
Large natural stream of water
5
Largest hot desert in the world
9
Low-lying land surrounded by higher ground
11
Total number of people in an area