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      Question

      What is the purpose of including a control group in

      scientific experiments?  
      A Test multiple variables Correct Answer Incorrect Answer
      B Introduce experimental bias Correct Answer Incorrect Answer
      C Manipulate different variables Correct Answer Incorrect Answer
      D Provide a comparison baseline Correct Answer Incorrect Answer

      Solution

      A control group is essential in experiments to serve as a benchmark, helping researchers to measure the true effect of the independent variable on the experimental group.

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