Across
1
City that is seat of government
4
Half of the Earth
8
Low-lying land surrounded by higher ground
9
Mountain that can erupt with lava
10
Total number of people in an area
Down
1
Tool for finding directions
2
Large natural stream of water
3
Visual representation of an area
5
Vast body of salt water
6
Chain or group of islands
7
Cold treeless Arctic plain
11
Deep narrow valley with steep sides