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Deserts may be formed by any of the following:

  • Deforestation - when trees are cut down, there are no tree roots to hold the soil in place. This means wind erosion can pick up more good topsoil and take it away. This results in a vicious circle whereby plants cannot regenerate and so more soil is eroded away.
  • Deserts may be caused by rain shadows, when mountain ranges prevent clouds from reaching inland. As air from the ocean moves over the mountains, it cools down and moisture condenses, causing precipitation on the windward side. However, by the time the air reaches the lee of the mountains, it is dry because it has lost most of its moisture, meaning no precipitation to encourage plant growth - hence, a desert. Quite simply, mountains can block cloud paths. No clouds leads to lack of rain, which in turn leads to desert.
  • High altitude may result in deserts.
  • Cold deserts, such as the Antarctic, result from the fact that ice and snow does not melt, meaning there is no opportunity for plants to grow.
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9y ago
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13y ago

Hot deserts may be formed in a couple of ways:

  • Deforestation - when trees are cut down, there are no tree roots to hold the soil in place. This means wind erosion can pick up more good topsoil and take it away. This results in a vicious circle whereby plants cannot regenerate and so more soil is eroded away.
  • Deserts may be caused by rain shadows, when mountain ranges prevent clouds from reaching inland. As air from the ocean moves over the mountains, it cools down and moisture condenses, causing precipitation on the windward side. However, by the time the air reaches the lee of the mountains, it is dry because it has lost most of its moisture, meaning no precipitation to encourage plant growth - hence, a desert. Quite simply, mountains can block cloud paths. No clouds leads to lack of rain, which in turn leads to desert.
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14y ago

over many years, sand (through abrasion) wears away rocks and BAM! land form.

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11y ago

mountains creating a "rainshadow effect."

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Q: How are desert sand dunes formed?
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Related questions

What are formed of wind deposit in desert region and near oceans and lakes?

Sand dunes are formed by wind .


Where are sand dunes likey to be?

Sand dunes are likely to be in a desert


What are natural hand forms that are primarily formed by wind erosion?

Desert sand dunes


Which land feature is most likely to be formed by wind erosion?

Desert sand dunes :)


How many sand dunes can can be in one desert?

There is no limit to the number of sand dunes in any particular desert.


How are sane dunes created?

When the high strong wind blow in desert it take away lots of sand with it and collect it in some other place by which sand dunes formed.


What are dry areas where sand dunes are formed?

Sand dunes are found in many deserts, as well as in some less arid areas of the world.


Are there dunes in the Sonoran Desert?

Yes, there are sand dunes in parts of the Sonoran Desert.


Are there sand dunes in California?

in the desert


What are sand mounds in a desert?

Dunes.


What is it called when sand dunes are formed by this erosional force?

Sand dunes are formed by wind, which is one kind of erosion.


What is it called when sand dunes are formed by erosional force?

Sand dunes are formed by wind, which is one kind of erosion.