Across
1
Imaginary line around the middle of Earth
5
Large area covered with trees
6
Flat elevated area of land
7
Total number of people in an area
8
Low area between mountains
9
Large natural stream of water
10
Ridge of rock or coral near the surface
11
City that is seat of government
Down
2
Distance north or south of equator
3
Largest ocean on Earth
4
Half of the Earth
12
Vast body of salt water
13
Largest river in South America