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why most of the world's deserts are located in the western margins of continents in the...

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cutiee123 | Student, Undergraduate | eNotes Newbie

Posted February 16, 2010 at 11:59 PM via web

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why most of the world's deserts are located in the western margins of continents in the subtropics?

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jannats-singh | Student, Grade 10 | (Level 1) Honors

Posted February 19, 2010 at 1:47 AM (Answer #1)

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Deserts are most common in the western margins of the continents in the tropics .

--because of the cold ocean currents along the western margin of the continents--- the air that blows over the cold ocean currents becomes cold and there by the moisture is sucked , this makes the region devoid of moisture and rainfall.
--the prevailing winds in the tropics are tropical easterly winds ,the tropical easterly winds become dry by the time they reach the western margins of the continents and so they bring no rainfall.

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