6th Class Science Air Around us Question Bank Air around us

  • question_answer
    Which of the following methods need air?

    A)  Hand picking

    B)         Sieving

    C)         Winnowing  

    D)         Filtration

    Correct Answer: C

    Solution :

    Winnowing is a method used by farmers to separate grains like wheat or rice and husk. Moving air blows away the husk which is lighter than the grain.


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