Question

which physical method can separate a mixture of steel ball bearings and marbles? boiling evaporation filtration sorting

Explanation:

Steel ball - bearings are made of metal and marbles are usually made of glass or stone. They have different physical appearances and properties. Boiling, evaporation, and filtration are not suitable as they are mainly for separating substances based on solubility, volatility, etc. Sorting can be used to separate them by hand or by using machines that can distinguish based on physical characteristics like size, shape, and magnetic properties (steel is magnetic while marbles are not in general).

Answer:

D. sorting