Answer: Sand can be separated from sand by the process of Sieving.
Explanation: The size of particles of sand and rocks vary much, so the process used to separate them is Sieving.
Sieving is a process in which fine particles of a substance is separated from a mixture containing particles of different sizes.
The tool used during this process is called as a sieve. In this the particles having smaller size goes down and the particles with large size gets remained on the sieve.
To separate sand and rocks, the sieve of optimum mesh size should be used.
