9th Class Science Sample Paper Sample Paper - 2 Term - 1

  • question_answer
    (i) What is evaporation? (ii) Name the factors on which evaporation depends.    

    Answer:

    (i) It is the phenomenon in which only the high energy molecules leave the liquid surface.                                           (1) (ii) Evaporation depend upon the (a) nature of the liquid (b) humidity of air (c) pressure on the liquid surface (d) temperature of the liquid (e) area of the exposed surface.                                                         (2)  


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