Give a stream of consciousness and then the final answer. Sea salt is salt that is produced by the evaporation of seawater. It is used as a seasoning in foods, cooking, and cosmetics. It is also called bay salt, solar salt, or salt. Like mined rock salt, production of sea salt has been dated to prehistoric times. There is no scientific evidence that consuming sea salt instead of more refined sodium chloride salts has any health benefit.\n\nAnswer this question: manufacture of salt from seawater is which change?
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To answer the above question, the relevant sentence is: Sea salt is salt that is produced by the evaporation of seawater.
So, the final answer is evaporation.
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