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How Sand Dunes Move Across Deserts — And Why Some Stay Still

沙丘如何在沙漠中移动,又为何有些沙丘保持静止?

How Sand Dunes Move Across Deserts — And Why Some Stay Still

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  1. Wind pushes sand grains along the ground in a process called saltation, gradually reshaping dune forms over time.

  2. The speed and direction of prevailing winds determine whether dunes migrate, rotate, or remain anchored.

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