Tropical Deserts :
(a) These are located between 15° to 30°North and South latitudes.
(b) Climate is hot and dry.
(c) Trees are palm trees, cactus, xerophytic plants.
(d) Temperature may range from 30°C to 45°C annual rainfall less than 25 cm, winter temperature below 20°C. It is known as the highest range of temperature.
Temperate Deserts :
(a) These are found between 40° to 55° North and South latitudes.
(b) Climate is cold and dry.
(c) Thorny bushes, long rooted grass, small trees etc.
(d) Temperature is between 3°C and 12°C, annual rainfall is 20cm to 60 cm. In Calgary region of Canada temperature is -10°C, Range of temperature is moderate.