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Given below are some methods of separation.
X - Winnowing
Y - Threshing
Z - Sieving
Y - Threshing
Z - Sieving
Which of the following methods of separation does not require air for the process of separation?
- a)Only X
- b)Only Y, Z
- c)Only Z, X
- d)X, Y and Z
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Given below are some methods of separation.X - Winnowing Y - Threshing...
Understanding the Methods of Separation
In the context of separating mixtures, let's explore the three methods mentioned: Winnowing, Threshing, and Sieving, to determine which does not require air.
1. Winnowing
- Definition: Winnowing is a method used to separate lighter particles from heavier ones, commonly used for grains.
- Air Requirement: This process employs wind or air currents to blow away the lighter chaff, making air essential for its operation.
2. Threshing
- Definition: Threshing is the process of separating grains from the husks and straw.
- Air Requirement: While it can involve mechanical means to beat the grains, it often uses air to help separate the lighter husks from the heavier grains. Thus, air plays a role in this method as well.
3. Sieving
- Definition: Sieving is a simple method of separation that involves passing a mixture through a sieve or mesh to separate particles based on size.
- Air Requirement: This method does NOT rely on air; it purely depends on the size of the particles being separated.
Conclusion
From the explanations:
- Winnowing requires air.
- Threshing also involves air in many cases.
- Sieving is the only method that operates independently of air.
Thus, the correct answer is B) Only Y, Z, as Threshing (Y) and Sieving (Z) can be performed without the need for air, while Winnowing (X) cannot.
In the context of separating mixtures, let's explore the three methods mentioned: Winnowing, Threshing, and Sieving, to determine which does not require air.
1. Winnowing
- Definition: Winnowing is a method used to separate lighter particles from heavier ones, commonly used for grains.
- Air Requirement: This process employs wind or air currents to blow away the lighter chaff, making air essential for its operation.
2. Threshing
- Definition: Threshing is the process of separating grains from the husks and straw.
- Air Requirement: While it can involve mechanical means to beat the grains, it often uses air to help separate the lighter husks from the heavier grains. Thus, air plays a role in this method as well.
3. Sieving
- Definition: Sieving is a simple method of separation that involves passing a mixture through a sieve or mesh to separate particles based on size.
- Air Requirement: This method does NOT rely on air; it purely depends on the size of the particles being separated.
Conclusion
From the explanations:
- Winnowing requires air.
- Threshing also involves air in many cases.
- Sieving is the only method that operates independently of air.
Thus, the correct answer is B) Only Y, Z, as Threshing (Y) and Sieving (Z) can be performed without the need for air, while Winnowing (X) cannot.
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Community Answer
Given below are some methods of separation.X - Winnowing Y - Threshing...
- X - Winnowing: This method uses the weight difference between components and depends on air to separate lighter particles (like husk) from heavier ones (like grains). Requires air.
- Y - Threshing: This method involves beating or mechanical action to separate grains from stalks. It does not rely on air for separation. Does not require air.
- Z - Sieving: This method involves passing a mixture through a sieve with appropriate-sized holes to separate particles based on size. It does not rely on air. Does not require air.
Correct Answer: b) Only Y, Z
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Given below are some methods of separation.X - Winnowing Y - Threshing Z - SievingWhich of the following methods of separation does not require air for the process of separation?a)Only Xb)Only Y, Zc)Only Z, Xd)X, Y and ZCorrect answer is option 'B'. Can you explain this answer?
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