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A student investigates the effect of light duration on plant growth. The student changes light duration and measures plant height. Which is the independent variable?

Answer and explanation

Correct answer: Light duration

Light duration is deliberately changed so it is the independent variable. In exams identify the independent variable as the factor manipulated by the experimenter.

Related tags

VariablesIndependent VariablePlant GrowthExperimentVariables In An ExperimentExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScience

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