Question

Principal behind winnowing is​

Answer 1

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Winnowing is based on the fact that if mixture is containing two components and one is lighter than another one, then both the components can be separated by blow of air. Mixture is allowed to fall from a height. Lighter component gets separated from heavier component due to wind.

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• Threshing is the process of separation of grain from the stalk on which it develops and from the chaff or unit that covers it. In the process, the edible part of the crop is loosened but not the fibre part. It is done after harvesting and before winnowing.
• Techniques included using a winnowing fan (a shaped basket shaken to raise the chaff) or using a tool (a winnowing fork or shovel) on a pile of harvested grain.

Answer 2

Answer:

mixture of two components one is lighter than another one