2. Sample Papers
  3. 7th Class
  4. Science

7th Class Science Sample Paper Science Sample Paper - 6

  • question_answer
    Choose the correct option:
    (iii) During heavy exercise, we get cramps in the legs due to accumulation of

    A) \[C{{O}_{2}}\]                                    

    B) lactic acid

    C) alcohol                                     

    D) water

    Correct Answer: B

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