7th Class Science Forests: Our Lifeline Question Bank Resources on Earth - Forests and Ecosystem

  • question_answer
    Plants and animals maintain the balance of oxygen and carbon dioxide in the air. Which of the following processes represents X and Y?                

    A)
    X Y
    Respiration Transpiration
                   

    B)
    X Y
    Transpiration Decay
                   

    C)
    X Y
    Photosynthesis Respiration
                   

    D)
    X Y
    Decay Photosynthesis

    Correct Answer: C

    Solution :

                    In the given cycle X-photosynthesis, Y-respiration.


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