Filtration: Obtaining sand from a mixture of sand and water, Obtaining water from a mixture of sand and water, Obtaining tea from a mixture of tea and tea leaves, Evaporation: Obtaining salt from seawater, Obtaining potassium chloride from potassium chloride solution, Obtaining copper sulfate from copper sulfate solution, Distillation: Obtaining water from copper sulfate solution, Obtaining ethanol (the solvent) from glue, Obtaining pure water from sea water, Obtaining propanone (the solvent) from nail polish remover,

Which separation technique?

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