Across
1
Largest hot desert in the world
3
Deep narrow valley with steep sides
5
Long-term weather patterns of an area
6
Body of water surrounded by land
7
Large natural stream of water
8
Wearing away of land by water or wind
Down
2
Mountain that can erupt with lava
3
Tool for finding directions
4
Height above sea level
9
Largest river in South America
10
Ridge of rock or coral near the surface
11
Dry land with little rainfall