Answer:-
A control variable is something that stays the same throughout an experiment to ensure that the results are due to the independent variable and not other factors. By keeping control variables constant, you can isolate the effect of the independent variable on the dependent variable. For example, if you're testing how different amounts of light affect plant growth, you might control variables like soil type, water amount, and temperature, so only the light variation is influencing the plants. Control variables are important for the validity of an experiment, as they help make sure the findings are accurate and reliable.
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