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Louis hypothesis that Bright white laundry detergent will be more effective than Biosafe laundry detergent at removing stains from white shirts. He conducts an experiment in which he uses bright white to wash one white shirt and Biosafe to wash another white shirt with identical stains. What is the independent variable?

User Karantan
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the variable is that it gets bleach longer it has less oxygen

User Dumb Questioner
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