Which one of the following is/are the methods used for separating husk from grains?

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Threshing

Handpicking

Winnowing

Both 2 and 3

answer is D.

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Detailed Solution

Both handpicking and winnowing are the methods used for separating husk from grains.
Here, threshing is used to separate the edible part of grain from the stalk to which it is attached by beating, and the Loading method of separation is used to separate a mixture of liquids by adding chemicals. Handpicking is used to separate husk and stones from grains simply by hand, while winnowing is the process of separating lighter particles from heavier particles through airflow. It is commonly used for separating heavier seeds and grains from husk because the husk is lighter than the grains. Winnowing, a faster and more efficient method than handpicking, is mainly used to separate the husk from the grain.

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