Across
1
Largest river in South America
3
Half of the Earth
4
Long-term weather patterns of an area
5
City that is seat of government
8
Steep rock face at edge of land
9
Region surrounding the North Pole
Down
2
Total number of people in an area
4
Tool for finding directions
6
Cold treeless Arctic plain
7
Large natural stream of water
10
Line dividing two countries