Across
1
Physical features of land
5
Largest river in South America
6
Body of water surrounded by land
7
Deep narrow valley with steep sides
Down
2
Line dividing two countries
3
Wearing away of land by water or wind
4
Raised area of land, smaller than a mountain
8
Large natural elevation of earth
9
Ridge of rock or coral near the surface
10
Long-term weather patterns of an area