Question

____________is used to separate substances when their sizes are significantly large​

Answer 1

Answer:

1. Sieving is used to separate substances when their sizes are significantly large​

2. Sieving is defined as 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.

3. Thus, it cannot separate two substances in a mixture that have the same size.

4. For example, it cannot separate a mixture of chalk powder from flour.

Answer 2

• When the sizes of two substances are significantly different, sieving is employed to separate them. 
• Sieving is described as a method of separating two or more components of various sizes from a mixture based on their size differences.
• As a result, it is unable to differentiate two components in a combination of the same size.