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Observe the diagram(s) given below and name the process used
i) ii) iii) iv)

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i) Sieving, ii) winnowing, iii) hand picking, iv) Threshing

i) Sieving, ii) hand picking iii) Threshing, iv) winnowing

i) winnowing, ii) Sieving, iii) Threshing, iv) hand picking

i) Hand picking, ii) Threshing, iii) Sieving, iv) winnowing

answer is B.

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Detailed Solution

Sieving $\to$ It is applicable when there is difference in size of the particles

Hand picking $\to$ It is applicable when there is difference in shape and colour of the particles.

Threshing $\to$ It is the process which is applicable to separate grains from stalks.

Winnowing $\to$ It is applicable when there is difference in weights of the substances.

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