In order to separate a mixture of sand and salt, which one of the following four sequences of processes has to be used?
(a) Evaporation, sedimentation, decantation, filtration
(b) Decantation, sedimentation, evaporation, filtration
(c) Sedimentation, decantation, filtration, evaporation
(d) Filtration, decantation, evaporation, sedimentation
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Answer:
the answers should be option "D"
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