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  3. 4th Class
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4th Class Science Sample Paper Science Olympiad Model Test Paper-10

  • question_answer
    When a person runs or does some hard physical work, what happens to his breathing?

    A) It gets fast                     

    B) It gets slow

    C) It remains same 

    D) It stops the process of breathing for sometime

    E) None of these

    Correct Answer: A

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