The term used for the process of separating grains from chaff is

sieving

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threshing

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winnowing

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hand picking

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Solution

The correct option is C
winnowing

Wind winnowing is an agricultural method developed by ancient cultures for separating grains from the chaff. It is also used to remove weevils or other pests from stored grain. Threshing, the loosening of grain or seeds from the husks and straw, is the step in the chaff-removal process that comes before winnowing.

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Question 4
The term used for the process of separation of grains from the chaff is called
(a) sieving
(b) threshing
(c) winnowing
(d) hand picking

What is winnowing, sieving, threshing, hand picking

The term used for the process of seperation of grains from chaff is threshing whereas winnowing does the same task. So why is it that the term used is threshing and not winnowing?

Q. Define the following with an example:
(i) Hand-picking
(ii) Winnowing
(iii) Threshing
(iv) Sieving

With respect to the following statements, choose the correct option.

(i) Winnowing is a time-consuming process for separating grain from chaff.
(ii) Fodder cannot be recovered by the process of winnowing.
(iii) Threshing is loosening of grain from chaff.
(iv) Traditional methods do not involve threshing.

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