Describe sieving method

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Describe sieving method. 

Answer: When the sizes of the components of a mixture are big enough, they can be separated with the help of sieve. 

A sieve is a simple mechanical device in which a mesh is attached to a frame. When the mixture is placed on the mesh and is stirred, particles of smaller size pass through the mesh while the bigger particles of the other component remain above the mesh.

E.g. gram can be separated wheat, sieving of sand at construction site etc.

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