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In an experiment the amount of light was changed and plant growth was measured. The amount of water also varied. What is the main problem?

Answer and explanation

Correct answer: An additional variable is affecting the result

Uncontrolled water makes it difficult to isolate the effect of light. Identify confounding variables in exams.

Related tags

Confounding VariableFair TestPlant ExperimentNature And Meaning Of ScienceExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScienceClass 9 Mcq

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