give two situations where it is necessary to separate a mixture of into its constituents
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It is necessary to separate a mixture into its constituents for the following situations: Removing undesirable constituents: For example, it is desirable to remove small stones in rice, or separating tea leaves from tea. To obtain useful substances: Butter is obtained by churning curds.
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A certain freezing process requires that more temperature be lowered from 40°c at the rate of 5°c every hour, What will be the room temperature 15 hours after the process begins?
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