Across
1
Half of the Earth
6
City that is seat of government
7
Largest river in South America
9
Region between the two tropic lines
Down
2
Where river meets the sea
3
Seasonal heavy rainfall
4
Large area covered with trees
5
Piece of land jutting into the sea
8
Body of water surrounded by land
10
Large slow-moving mass of ice
11
Cold treeless Arctic plain
12
Largest ocean on Earth