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Air is a fluid which moves in a course and moves as a consequence of uneven heating of large amounts of air
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Air is a fluid which moves in a course and moves as a consequence of uneven heating of large amounts of air. As the Earth's surface is warmed differentially, the air above the surface absorbs different amounts of heat. Warmer air rises and cool air sinks and this creates the air movement. Winds flow parallel to the latitude, taking heat from equatorial regions to the Polar Regions.
SIMPLIFIED: Air near the surface is heated and rises; cooler air comes in to replace hot rising air and this movement of air results in winds.
Erosion by wind is known as Aeolian (or Eolian) erosion and occurs almost always in deserts. Wind erosion will occur when the wind is 30 cm above the ground surface and blows stronger than 12 mph (19.3 km/hr). Dry climates are more vulnerable to wind erosion than humid climates. High wind velocity adds to the wind erosion. Wind erosion occurs mostly in flat, dry areas and moist sandy soils. Wind erosion removes soil and natural vegetation.
Wind can be effective agent of erosion anywhere. Wind can erode by deflation and abrasion.
Abrasion occurs when wind carrying
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