Which of the following is correct about sieving technique?

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Sieving is an old technique to measure particles

It is useful to measure large particles

It is a cheaper method to measure the particles

All of the above

answer is D.

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Detailed Solution

All the matters are made up of small particles known as atom or molecules. These particles are measured in microns.
There are many methods to measure the particles.
The oldest method of measuring particles is sieving. It is useful to measure large particles. It is the cheaper method of measuring particles. It is used in mining industries. The disadvantage of this method is that it is not useful to measure small particles.

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