Question

III. Short answer type questions.
1. Differentiate between threshing and winnowing.
2. Give an example where hand picking is used for separation.
3. What is sieving? Give an​

Answer 1

Answer:

1) Threshing is a process of pounding the sheaves against the wooden bar to remove he grains from the stalks....while winnowing is a method of seperating the unpleasant husk from food.

2) The method of handpicking is used to separate those mixtures where one of the component is in small component.The method of handpicking is used to separate undesirable substances such as small pieces of stones from wheat, rice and pulses

3) Seiving is a process of separating WANTED elements from UNWANTED materials. For example:) In a flour mill, impurities like husk and stone are removed from wheat before grinding it.

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