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      Question

      Heart : Circulation :: Lungs : ?

      Select the related word/letters/number from the given alternatives.
      A Breathing Correct Answer Incorrect Answer
      B Running Correct Answer Incorrect Answer
      C Swallowing Correct Answer Incorrect Answer
      D Drinking Correct Answer Incorrect Answer

      Solution

      Explanation: The heart is vital for circulation, just as lungs are essential for breathing .

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