Question

What type of sand dunes will likely form if the sand supply is limited, the wind direction is constant, and vegetation is sparse?


longitudinal dunes


barchan dunes


star dunes


transverse dunes

Answer 1

If the sand supply is limited, the wind direction is constant, and vegetation is sparse, **barchan dunes** are likely to form. Barchan dunes are crescent-shaped and typically form in environments with limited sand availability, where the wind direction is consistent. They migrate in the direction of the wind and can be found in arid regions where there is little vegetation to stabilize the sand.