how can we separate?
i.stones from rice
ii.husk from rice

Dear Student,
1.stones can be separated from rice simply by Hand-picking because the size of stone is big enough to be separated by hand.
2. Husk can be separated from rice by winnowing . In winnowing the husk and rice mixture is kept on a plate or a winnow and then allowed to fall from a height the husk being lighter will fly away with the wind while rice being heavier will fall to the ground.

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1.   hand picking
2.    Threshing
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