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mihalych1998 [28]
4 years ago
8

Sand dunes are formed by _____.

Geography
2 answers:
lana66690 [7]4 years ago
8 0
Wind and erosion overtime
Dmitriy789 [7]4 years ago
7 0
That would be wind blowing and piling sand up together until it becomes a dune. :D
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