Answer:

SIEVING

Explanation:

•A method in which two or more components of different sizes are separated from a mixture on the basis of the difference in their sizes.

•Sieving is a simple method for separating particles of varying sizes. The holes in a sieve, such as one used for sifting flour, are extremely small. Grinding against one another and the screen openings separates or breaks up coarse particles. Sieves are also employed in the separation of stones from sand.