Question

what is a sand dune​

Answer 1

Answer:

A sand dune is a mount, hill or ridge of sand that lies behind the part of the beach affected by tides.

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Answer 2

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♦ A hill or ridge of sand piled up by the wind is called a sand dune.

♦ Dunes may form wherever there is a lot of loose sand and enough wind to move it.

♦ Beaches and deserts are common places for dunes.

♦ Most windblown sand is made up of the mineral quartz.

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