Across
1
Largest hot desert in the world
4
Large natural elevation of earth
5
Large area covered with trees
Down
2
Ridge of rock or coral near the surface
3
Deep narrow valley with steep sides
6
Land surrounded by water on three sides
7
Imaginary line around the middle of Earth
8
Region between the two tropic lines
9
Area where water covers the soil
10
Flat elevated area of land