Across
1
Goods sold to another country
5
Largest river in South America
7
Large slow-moving mass of ice
9
Ridge of rock or coral near the surface
10
Deep narrow valley with steep sides
11
Seasonal heavy rainfall
Down
2
Line dividing two countries
3
Half of the Earth
4
Largest hot desert in the world
6
Large natural elevation of earth
8
Mountain that can erupt with lava