Question

what is sand dunes ?​

Answer 1

Answer:

A dune is a mound of sand formed by the wind, usually along the beach or in a desert. Dunes form when wind blows sand into a sheltered area behind an obstacle. Dunes grow as grains of sand accumulate. Every dune has a windward side and a slipface.

Answer 2

Sand dunes are hills of sand that are made by winds as they blow across deserts. With strong, long-lasting winds, sand dunes can grow very high and be many miles long. Strong winds can also blow sand dunes very slowly along the desert. Sand dunes can be various shapes, such as crescents, stars, or just repeated lines.

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