Across
1
Region between the two tropic lines
6
Area where water covers the soil
9
Vast body of salt water
10
Goods brought in from another country
11
Region surrounding the North Pole
12
Flat grassland in tropical regions
Down
2
Largest river in South America
3
Steep rock face at edge of land
4
Large natural elevation of earth
5
Tool for finding directions
7
Goods sold to another country
8
Total number of people in an area
