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ripplesripples
Small, undulating ridges and furrows (or crests and troughs) formed by the action of the flow of water on the bed of a channel or on sand or snow by the action of the wind.
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ripplesripples
Small, undulating ridges and furrows (or crests and troughs) formed by the action of the flow of water on the bed of a channel or on sand or snow by the action of the wind.
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