Across
1
Large slow-moving mass of ice
4
Largest river in South America
6
Large area covered with trees
8
Region between the two tropic lines
9
Half of the Earth
10
Flat elevated area of land
11
Goods sold to another country
Down
2
Region near the equator
3
Mountain that can erupt with lava
5
Distance east or west of prime meridian
7
Where river meets the sea
12
Flat grassland in tropical regions