Question

why would we need to separate substance for grouping​

Answer 1

Answer:

separation of these substances are important so that all the substances can be used individually there are different method which is used to separate substance for e.g: hand picking , threshing , filteration , sedimentation , winnowing,etc

Answer 2

Why do we need to separate different components of a mixture? When two or more substances are mixed together they form a mixture. Components of a mixture should be separated because some components may not be useful or may spoil the useful component of the mixture.

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