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Biology, 02.07.2019 02:50 jones03riley

With kate gathered three boxes of the same size made of different materials: glass, clear plastic, and aluminum painted black. she placed them on a window sill in the sun for an hour and then measured the warmth of the air in each box. in this experiment, the types of box materials are a(n) a. constant b. dependent variable c. control d. independent variable

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