Social Studies, 06.05.2021 09:10, bobiscool3698

How did these sand dunes form? At one time, a river ran through this area. When it dried, the sandy bottom formed the dunes.

Gravity caused the grains of sand to fall from a mountain, forming the dunes.

Wind carried the sandy soil from far away and deposited it where it formed huge hills of sand.

A glacier traveled over the land creating the different hills of sand.

White Sands National Monument

How did these sand dunes form?

At one time, a river ran through this area. When it dried, the san

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How did these sand dunes form? At one time, a river ran through this area. When it dried, the sand...