Which method uses brine solutions to obtain salt from deposits?

• A. rock mining
• B. brine solution mining
• C. solar evaporation
• D. atmospheric harvesting

Answer: (B)

The main idea here is how salt is removed from underground deposits by dissolving it in water instead of breaking up solid rock. In brine solution mining, water is pumped down into salt deposits to dissolve the salt, creating a brine that is brought back to the surface. The salt is then recovered from this brine, often by evaporation so the solid salt crystals reform. This contrasts with rock mining, where solid rock containing the salt is physically mined and processed. Solar evaporation relies on sunlight to evaporate water from salty solutions on surface ponds, leaving salt behind, but it doesn’t involve dissolving underground deposits with a circulating brine. Atmospheric harvesting isn’t a standard method for obtaining salt from deposits.