Answer :

It is true that parabolic dunes were commonly active in Georgia, and the Southeast at about 20,000 years ago. (The answer is True).

Parabolic dunes form when strong winds blow and erode the vegetated parts of the sand. The shape of these parabolic dunes is like a U shape with a convex nose and elongated arms. Parabolic dunes are also known as U-shaped, hairpin or blowout. This type of dunes is known in coastal desert areas. These parabolic dunes often occur in semiarid areas when precipitation persists at the bottom of the dunes as well as the soil on the underside

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