Question

Every year, Eli and his family visit the Great Sand Dunes desert in Colorado. Eli notices that more sand dunes with varied shapes and sizes appear each year. Explain what causes this phenomenon.

PLZ DO NOT SAY WIKI!!!!!!!!

Answer 1

wind erosion and erosion is what i said

Answer 2

The wind blows around the sand so no one grain of sand stays in the same place forever. The winds molds the sand dunes for a very short time