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CrowdScience - Why do dirt roads become rippled over time? - 91热爆 Sounds

CrowdScience - Why do dirt roads become rippled over time? - 91热爆 Sounds

From: CrowdScience

Why do dirt roads become rippled over time?Why do dirt roads become rippled over time?

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Alice Williamson, lecturer at the University of Sydney, explains.

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Why do dirt roads become rippled over time?
Alice Williamson, lecturer at the University of Sydney, explains.
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