1st Class Science Air, Water and Weather Question Bank Air and Water

  • question_answer 9) Savitri is mopping floor. Which of the following would help her in better and faster cleaning?   

    A)  Dry mop and still air           

    B)  Wet mop and still air         

    C)  Dry mop and moving air       

    D)  Wet mop and moving air            

    Correct Answer: D

    Solution :

    Wet mop will clean better and moving air will dry the floor faster. If the air is still, floor will dry slowly and dust etc., will stick more easily to the wet floor.

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