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7th Class Science Sample Paper Science Olympiad Model Test Paper-19

  • question_answer
    Raghu gets muscle cramp while doing heavy physical excercises, the reason can be:

    A) Accumulation of alcohol in the muscles.

    B) Accumulation of lactic acid in the muscles.

    C) Accumulation of citric acid in the muscles.

    D) Accumulation of nitric acid in the muscles.

    E) None of these

    Correct Answer: B

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