A few methods of separation are represented with the help of examples as :
W: Alum is added to muddy water to settle the mud particles at the bottom.
X: Salt is separated from saline water without any loss of water.
Y: Sand is separated from gravel at a construction site.
Z: Chilli powder is separated from its mixture with water.
W, X, Y and Z are respectively

Options

A. Loading, evaporation, sedimentation and sieving
B. Filtration , decantation , sieving and winnowing
C. Evaporation, winnowing, sedimentation and sieving
D. Loading, distillation, sieving and filtration.

Answer

D

Explanation

W is loading, X is distillation, Y is sieving and Z is filtration