Across
1
Region surrounding the North Pole
4
Low area between mountains
6
Largest river in South America
8
Distance east or west of prime meridian
9
Large slow-moving mass of ice
12
Wearing away of land by water or wind
Down
2
Flat elevated area of land
3
Raised area of land, smaller than a mountain
5
Flat grassland in tropical regions
7
City that is seat of government
10
Large natural stream of water
11
Goods sold to another country