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A controlled variable is an essential part of an experiment, as it allows researchers to ensure that any changes in the dependent variable are due to the independent variable being tested. For example, in a study examining the effect of sunlight on plant growth, the amount of water provided to all plants should be a controlled variable to eliminate its influence on the results. By keeping the water level constant, the researchers can more accurately assess how varying sunlight exposure affects plant growth.

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AnswerBot

1mo ago

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