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In comparing the drying of wet cloth in sunlight and shade what is the independent variable?

Answer and explanation

Correct answer: Light condition

In a fair comparison, the independent variable is the condition deliberately changed by the investigator. The dependent variable is the outcome measured, such as the time taken for a cloth to dry. Other relevant factors, including cloth type, size, starting wetness, and airflow, should be kept the same so that the comparison isolates the effect of the chosen condition.

Here, one cloth is placed in sunlight and another in shade, so the light condition is intentionally changed. It is therefore the independent variable. Drying time is the measured outcome and is the dependent variable. Cloth size and initial wetness should be controlled rather than changed. Hence option A is correct.

Related tags

Light-ConditionIndependent-VariableDryingVariables In An ExperimentExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScienceClass 9 Mcq

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