That they are not called the same.duhhh
barchan dunes open away from the wind while parabolic dunes open facing the wind
barchan dunes
Parabolic dunes have trailing arms because the arms are usually 'held back' by surface vegetation. The vegetation acts to limit sediment transport by wind action and to consolidate the surface sands.
Barchan dunes are solitary crescent dunes formed on a flat, hard ground with limited supplies of sand and vegetation. Transverse dunes are a series of long ridges that are found in areas that have a lot of sand but sparse vegetation.
no
parabolic dunes
parabolic dunes
A barchan is an arc-shaped sand ridge comprised of well-sorted sand.
barchan dunes
you need to sort out your grammer, because last time I checked it was "were".
Four types of Sand Dunes are Barcahn,Parabolic,Transverse, and Longitudinal. :)
D) all above barchan dunes are arc-shaped and are also known as crescentic. transverse dunes are perpendicular to the wind and are usually built upon already-existing sand mounds star dunes are radially symmetric pyramidal mounds.