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The Kalahari desert is a desert because of the amount of rainfall and rain that is received every year- that makes the Kalahari desert a fossil desert. Miranda 11 years old
There is no "Nimbi Desert.' Were you referring to the Namib Desert?
Grassland
A desert is defined as a region that, on average, receives less than 10 inches (250 mm) of rain in a year.
Please narrow your question down to a specific desert as each desert has different statistics. Few deserts have much rain in the spring, the driest season of the year.
A savanna is a semi-arid transition zone between a desert and another biome, such as a grassland. It receives more rain than a desert.
grasslands :)
There is no 'Atlantic Desert.' Do you mean the Atacama Desert? The Atacama receives virtually no rainfall on average per year.
Due to it's vast size, the average rainfall in the Kalahari varies according to area. Parts of the Kalahari receive 250mm of rainfall annually, making these areas not true desert. It is only true desert in the South West region, as it receives less than 175mm of rain a year.
a Desert
Climate: The Kalahari desert has vast areas covered by red sand without any permanent surface water. Parts of the Kalahari receive over 250mm of erratic rainfall annually and are quite well vegetaed; it is only truly arid in the southwest (under 175mm of rain annually) making the Kalahari a fossil desert.
The only true polar desert is Antarctica and, except for along some coastlines, it receives no rain and little snowfall. It is the driest desert on earth according to some.