Across
1
Total number of people in an area
6
City that is seat of government
8
Flat grassland in tropical regions
9
Vast body of salt water
Down
2
Mountain that can erupt with lava
3
Large natural elevation of earth
4
Deep narrow valley with steep sides
5
Tool for finding directions
7
Distance east or west of prime meridian
8
Largest hot desert in the world
10
Physical features of land
11
Imaginary line around the middle of Earth