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I believe that with the new salt and pepper shakers, the salt shaker is the one with 3 holes, while the pepper goes in the one with 2 holes. Salt is used more than pepper anyway. Pepper should only ever be fresh ground at the table, meaning salt shakers win out.
In addition, cover-collapse sinkholes have formed along roads or other areas where water is repeatedly released onto the ground, washing soil into underlying bedrock cavities and creating soil caves that can collapse. Salt mining has also created sinkholes. In 2008 two large sinkholes formed in southeastern New Mexico when cavities produced by brine well operationsâa process that injects fresh water into salt beds to make brine for use as drilling fluid in oil wellsâabruptly collapsed.