Wind moving sand causes dunes, both in the desert and at the beach.
Their wavy nature with dips and uneven mounds/hills are caused by the wind pushing sand across the desert.
Lots of sand and strong winds
there are sand dunes but not deserts
Hot deserts
In most deserts, sand dunes are only a small area covered by the desert.
Most deserts have areas of dunes. However, the Sahara and Arabian Deserts are probably the best known for their dunes. The Rub al Khali, or Empty Quarter, is the largest sand desert on earth. It is part of the Arabian Desert.
Yes, The Sahara covers Egypt and that includes areas of sand dunes.
Both deserts and beaches have sand that is sometimes blown into dunes.
No, sand dunes are not the major feature of deserts. Hills, valleys, plains, mountains, mesas, arroyos, and many other features are more commonly seen in deserts than sand dunes.
Sand dunes are generally found in only limited areas of most deserts.
Ireland would have some sand dunes around its coast. Ireland is not warm enough to have any deserts and so it does not have desert sand dunes.
Brazil has no true deserts, only a few regions of coastal sand dunes that resemble deserts.
Erosion and Depositionerosion causes dunes and valleysdepostion causes deltas
Sand dunes can be found in the deserts. The Sahara Desert is known for being the largest hot desert in the world and known to have sand dunes. Other places includes the Middle East and especially Saudi Arabia.