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Question
Which of the following factor is responsible majorly for poor vegetation in deserts?
Which of the following factor is responsible majorly for poor vegetation in deserts?
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Solution
The correct option is B Low rainfall
Deserts occupy one fifth of land surface. It lacks rain (annual rainfall less than 25 centimeters) due to either being present in rain shadow (area beyond high mountains, which cut off clouds e.g., Tibet), lack of cloud intercepting mountains (e.g., Thar), or lying away from cloud seeding regions e.g., Death valley (Great Western desert) of USA. In true deserts rainfall is less than 12 centimeters per year, while in extreme deserts it is less than 7 centimeters per year. Limited water availability is the main reason for low productivity. Vegetation is sparse.
Deserts occupy one fifth of land surface. It lacks rain (annual rainfall less than 25 centimeters) due to either being present in rain shadow (area beyond high mountains, which cut off clouds e.g., Tibet), lack of cloud intercepting mountains (e.g., Thar), or lying away from cloud seeding regions e.g., Death valley (Great Western desert) of USA.
In true deserts rainfall is less than 12 centimeters per year, while in extreme deserts it is less than 7 centimeters per year. Limited water availability is the main reason for low productivity. Vegetation is sparse.
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