What are the various methods of separation of substances under dry conditions?
A
Sieving
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B
Hand Picking
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C
Threshing
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D
Winnowing
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Solution
The correct options are A Sieving B
Hand Picking
C
Threshing
D
Winnowing
Separation of substances involves separating a useful substance from the mixture.Sieving, Hand Picking, Threshing, Winnowing etc. are some of the methods for separation of substances. Example: Grain is separated from stalks, while harvesting. Milk or curd is churned to separate the butter.