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9th Class Science Is Matter Around Us Pure Question Bank Is Matter Around us Pure

  • question_answer
    What is the technique used to separate dirt particles from clothes in a washing machine?

    A)  Magnetic separation      

    B)  Filtration

    C)  Evaporation     

    D)         Centrifugation  

    Correct Answer: D

    Solution :

     The clothes are rotated at high speed in the washing machine (centrifugation) so that the dirt gets separated from clothes and gets cleaned.


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