Due to which of the following factors, winnowing is used to separate husk from grains?

Husk is very light as compared to grains

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Husk has a different colour

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Grains are very light compared to husk

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Husk and grains are of the same size

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Solution

The correct option is A Husk is very light as compared to grains
Winnowing is used when the components of a mixture differ by weight, and the lighter component can be blown away by wind. Husk is very light as compared to grains and it can be blown by the wind. Thus, winnowing is used to separate husk from grains.

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Question 6

While preparing chapatis, Paheli found that the flour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour?

(a) Threshing

(b) Sieving

(d) Filtration

Q. Match the items is Column A with the items in Column B

Column A	Column B
1. Separation of husk from grains	(a) Hand-picking
2. Conversion of liquid into vapour	(b) Filtration
3. Separating pebbles from pulses	(c) Threshing
4. Separating chalk powder from water	(d) Evaporation
5. Separating grains from the stalk	(e) Winnowing
	(f) Sieving

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