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Which question has clear comparison conditions but requires controlled variables in the investigation plan?

Answer and explanation

Correct answer: Do seeds germinate at different rates in light and darkness

Light and darkness are clear conditions but seed type water and temperature must be kept the same. Only then will the comparison be fair.

Related tags

ComparisonControlled-VariablesLightDarknessScientific Questions And ObservationsExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScience

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