2. DISTRIBUTION OF DESERTS
Annual precipitation in deserts is less than 250mm and less than
100mm in extreme deserts. Deserts have large diurnal
temperature ranges.

5. Rock desert
Sand desert
Stony desert

6. Basins of inland
drainage called
playas or shotts
Dry ravines or
wadis or
arroyos
Alluvial fans
can join
together to form
a bajada

7. DESERT
VEGET A T ION

8. W ATER?
IN THE

9. RIVER

10. Re so urce s and Furt he r Re ading
Robert G. Bailey (1998), Ecoregions, Springer-Verlag New
York
Farouk El-Baz et al.,(1982), The Desert Realm, National
Geographic
Tony Allan & Andrew Warren (1993), Deserts, Mitchell
Beazley World Conservation Atlas
w w w .ge o juice .o rg