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they form by god backing them into round things so that Adam and eve could make fire with the stones and then namd them pebbles and they wemt to the seashore

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12y ago
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14y ago

They get picked up and banged against other pebbles and this action knocks the high spots off, making them smooth.

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7y ago

Tumbling in abrasives. Naturally this occurs in the sandbed of a stream or river. Artificially this occurs in a rock tumbler filled with pebbles, abrasive powder, and water.

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11y ago

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Q: Why do pebbles that are rough and uneven become smooth and round?
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