Which method of separating a mixture involves passing a heterogeneous mixture through several layers of different materials?

filtration
decantation
evaporation
distillation

filtration

Explanation:

Heterogeneous mixtures  : It is a mixture that has non-uniform throughout the solution and the particle size or shapes are also different. There is a distinct boundary between the dispersed phase and the dispersion medium.

Filtration is defined as the process of separating suspended solid matter from a liquid or solids of different sizes.

Decantation is used to separate when a substance is insoluble in a liquid.

Evaporation is a process of separating  homogeneous mixture such as a volatile impurity from a non volatile impurity.

Distillation is a technique used to separate two liquids which differ in their boiling points.

filtration

Explanation:

Heterogeneous mixtures  : It is a mixture that has non-uniform throughout the solution and the particle size or shapes are also different. There is a distinct boundary between the dispersed phase and the dispersion medium.

Filtration is defined as the process of separating suspended solid matter from a liquid or solids of different sizes.

Decantation is used to separate when a substance is insoluble in a liquid.

Evaporation is a process of separating  homogeneous mixture such as a volatile impurity from a non volatile impurity.

Distillation is a technique used to separate two liquids which differ in their boiling points.