Question

what is a sand dune ?how are sand dunes formed in desert?1​

Answer 1

Answer:

sand dune is a mount, hill or ridge of sand that lies behind the part of the beach affected by tides. They are formed over many years when windblown sand is trapped by beach grass or other stationary objects.

Answer 2

Answer:

A sand dune is a mount, hill or ridge of sand that lies behind the part of the beach affected by tides. They are formed over many years when windblown sand is trapped by beach grass or other stationary objects.

Sand dunes are hills of sand that are made by winds as they blow across deserts. The more powerful a wind is, the farther it can carry particles of sand before they drop to the ground. As they roll and bounce on the ground, these particles create small, wave-shaped ripples of sand.