Which of the following technique is not used to separate sand-salt mixture?
Winnowing
Evaporation
Filtration
Decantation
Winnowing is used to separate heavier and lighter components of a mixture by wind or by blowing air.
Which techniques will be used to separate a mixture of sand, salt and water?
Which technique is used to separate sand from a mixture of sand and water?
Which technique is used to separate salt from sea water?