Question

how are sand dunes formed short answers

Answer 1

The Great Sand Dunes have been formed over thousands of years, as sand deposited by mountain streams and playa lakes on the San Luis Valley floor is carried in the form of small dunes by predominant southwest winds toward a low curve in the Sangre de Cristo Mountains

Answer 2

A dune is a mound of sand formed by the wind, usually along the beach or in a desert. Sand dunes form when wind deposits sand .
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