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How does rain make sand dunes fall down when just a bit of water makes sand harder?

746 viewsMay 27, 2019
Question50.84K May 27, 2019 1 Comment

How does rain make sand dunes fall down when just a bit of water makes sand harder?

In: Other

SeeTheStarsJustCos commented May 27, 2019

The sand on the outside of the dune gets heavy with water, then the dry crumbly sand in the middle can’t support the weight so it falls down

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