answersLogoWhite

0

Arid and semi-arid regions are distinguished on the basis of their annual precipitation sums and include: # Deserts with an annual precipitation sum <50 mm/year and devoid of vegetation, # Arid regions with 50-250 mm/year precipitation and sparse vegetation, and # Semi-arid regions with a precipitation sum of 250 to 500 mm per annum and a steppe savannah/prairie/pampa vegetation.

User Avatar

Wiki User

17y ago

What else can I help you with?