Question

Why do the sand dunes keep shifting

Answer 1

Answer:

Sand dunes are masses of loose sand that move across the ground in wind. The grains are blown up the windward side of a dune until they reach the top; then they drop down into the shelter of the lee (the side away from the wind).This continued action moves the dune across the landscape.

Answer 2

Answer:

Sand dunes are masses of loose sand that move across the ground in wind. The grains are blown up the windward side of a dune until they reach the top; then they drop down into the shelter of the lee (the side away from the wind) This continued action moves the dune across the landscape.

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