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Sand dunes that are at right angles to the wind are called Transverse Dunes. They form with weak winds and an abundant supply of sand.
They are perpendicular lines that meet to form right angles
Wind and waves form sand dunes on the beach
Sand Dunes. Aeroflot
Dunes are formed through the interaction of mountains and wind. The wind picks up quartz grains from the mountains in the area to form the dunes and these are reshaped by the same process over time.
barchan dunes
weathering
That depends in whether you mean scalloped potatoes cooked in plain casserole form or scalloped potatoes fried. In addition, scalloped potatoes fried can be simple slices of potato or they can be coated in batter (which makes a difference to the calorie count). Please feel free to ask the question again and included more detail.
Erosion and Depositionerosion causes dunes and valleysdepostion causes deltas
Centuries
sand dunes
barchan dunes