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6th Class Science Separation of Substances Question Bank Separation of Substances

  • question_answer
    Given below are some methods of separation.
    X Winnowing  
    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: B

    Solution :

    Only winnowing (X) needs air for the process of separation. While threshing (Y) and sieving (Z) do not need air while they are carried out.


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