Across
1
Largest hot desert in the world
4
City that is seat of government
6
Ridge of rock or coral near the surface
7
Wearing away of land by water or wind
9
Body of water surrounded by land
10
Imaginary line around the middle of Earth
12
Large natural stream of water
Down
2
Dry land with little rainfall
3
Flat elevated area of land
4
Deep narrow valley with steep sides
5
Physical features of land
8
Steep rock face at edge of land
11
Large area covered with trees