Raghu had collected some feathers for his science project. Ram, his naughty young brother mixed some sand to his collection.Which method should raghu follow to seperate feather from sand?

Threshing

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Sieving

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Handpicking

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Winnowing

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Solution

The correct option is D
Winnowing

In winnowing, the mixture is tilted slowly from some height. Thus the heavier element slides down while lighter element is flown out by the action of wind.

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Similar questions

Question 1

Paheli bought some vegetables such as french beans, lady’s finger, green chillies, brinjals and potatoes all mixed in a bag. Which of the following methods of separation would be most appropriate for her to separate them?

(a) Winnowing

(b) Sieving

(d) Hand picking

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. Read the story titled “WISE FARMER” and tick the correct option to complete the story.

A farmer was sad/happy to see his healthy wheat crop ready for harvest. He harvested the crops and left them under the sun/rain to dry the stalks. To separate the seeds from the bundles of the stalk he handpicked/threshed them. After gathering the seed grains he wanted to separate the stones and husk from it.

His wife winnowed/threshed them to separate the husk and later sieved/handpicked to remove stones from it. She ground the wheat grains and sieved/filtered the flour. The wise farmer and his wife got a good price for the flour. Can you tell why?

Q. Sonu was making sand pyramids at the beach. He designed his pyramids with a base edge of 10 cm and height 33 cm. He would go collect wet sand with his small cylindrical bucket of radius 5 cm and 7 cm height. How many times does he need to collect the wet sand in order to construct his sand pyramid?

Q. Zog collected some fruits for his new friends. Count the number of fruits collected.

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Raghu had collected some feathers for his science project. Ram, his naughty young brother mixed some sand to his collection.Which method should raghu follow to seperate feather from sand?

The correct option is D Winnowing In winnowing, the mixture is tilted slowly from some height. Thus the heavier element slides down while lighter element is flown out by the action of wind.

The correct option is D
Winnowing

In winnowing, the mixture is tilted slowly from some height. Thus the heavier element slides down while lighter element is flown out by the action of wind.