Question

sand dunes are Hills of sand how can hills be formed in a desert area​

Answer 1

Explanation:

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. ... A dunes windward side is the side where the wind is blowing and pushing material up.

Answer 2

Answer:

I think it will help you

Explanation:

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. ... A dunes windward side is the side where the wind is blowing and pushing material up.