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What are the four components of a controlled experiment?. A. opinions, independent variable, constant, control. B. data that matches previous research, opinions, variables, control. C. independent variable, dependent variable, control, constant. D. data that supports hypothesis, independent variable, constant, control.

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I believe the correct answer among the choices listed is option C. The four components of a controlled experiment are the  independent variable, dependent variable, control, constant. A controlled experiment is a test where a researcher vary one variable at a time.

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