Across
1
Large area covered with trees
3
Deep narrow valley with steep sides
4
Seasonal heavy rainfall
7
Wearing away of land by water or wind
8
City that is seat of government
10
Largest ocean on Earth
11
Large natural elevation of earth
Down
2
Physical features of land
5
Region between the two tropic lines
6
Vast body of salt water
9
Largest river in South America