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Biology, 02.09.2020 19:01 moosaw500

Three redwood trees are kept at different humidity levels inside a greenhouse for 12 weeks. One tree is left outside in normal conditions. The heights of the trees are measured once a week. What is the Independent Variable: What is the Dependent Variable? What is the controlled variable?

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Three redwood trees are kept at different humidity levels inside a greenhouse for 12 weeks. One tree...
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