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Which method is commonly used by farmers to separate lighter husk particles from heavier seeds of grain?

Which method is commonly used by farmers to separate lighter husk particles from heavier seeds of grain? Correct Answer Winnowing

The correct answer is Winnowing.

Key Points

  • Winnowing is the method in which heavier components of the mixture are separated from the lighter substances with the help of wind.
  • Advantages of Winnowing:
    • This method doesn’t require any machines for its functioning.
    • It is completely based on human activity and hence it takes less time to process and definitely very cheap. 
  • Disadvantages of Winnowing:
    • We cannot separate materials heavier than grains like small stone particles.

Additional Information

  • Threshing is the process of separating the grain from the straw.
    • It can be either done by hand, by using a treadle thresher, or a thresher machine. 
  • Decanting is the process of separation of liquid from solid and other immiscible (non-mixing) liquids, by removing the liquid layer at the top from the layer of solid or liquid below.
    • The process can be carried out by tilting the mixture after pouring out the top layer.
  • Sieving is a method of using a sieve to distinguish small particles from bigger particles.
    • It is used in flour mills or building sites.

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