7th Class Science Sample Paper Science Sample Paper - 8

  • question_answer
    What is transpiration? What is its significance?

    Answer:

    Evaporation of water through stomata present on the leaves is called transpiration.                                         
    Significance:
    (i) It keeps the plant cool.                                                                                                                                                                                         
    (ii) It helps in upward movement of water in xylem as it creates a suction force.                        


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