Question

Find the odd one out. Give a reason for your answer.

Winnowing, decantation. filtration and distillation.

Answer 1

• 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.