Find the odd one out. Give a reason for your answer.
Winnowing, decantation. filtration and distillation.

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Solution

Winnowing - The technique of separating light particles from heavy particles by using the flow of wind.
Decantation - Decantation is the process of separating the liquid portion of a mixture when the heavier component settles as sediments at the bottom. In other words, it is the process of moving a liquid from one container to another while leaving the sediments at the bottom alone.
Filtration - Filtration is technically defined as the process of separating suspended solid matter from a liquid by passing it through the pores of a membrane known as a filter.
Distillation - Distillation is a process of heating a liquid to form its vapors and then collecting and cooling it to get the pure liquid back from its solution.
Hence, here other than winnowing all the methods of separation involve the presence of liquid water.
The odd one out is Winnowing.

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Find the odd one out. Give a reason for your answer. Winnowing, decantation. filtration and distillation.

Find the odd one out. Give a reason for your answer.
Winnowing, decantation. filtration and distillation.