Question

What are dunes?give example

Answer 1

Answer:

Dunes are large masses of wind-blown sand, and are most common in deserted environments, such as the Sahara, and also near beaches. An area with dunes is called a dune system. In physical geography, a dune is a hill of loose sand built by aeolian processes or the flow of water.

Ex- Longitudinal Dunes

Answer 2

Dunes grow as grains of sand and accumulate.Every jane has a windward side ans a slip face.Longitudinal dines.Namrrow elongate dunes that form when the wind blows kn two convergent directions.