You are an amateur gardener and are reading an article that explains that plants need only five basic factors for growth: sunlight, water, air, nutrients, and a substrate on which to grow (soil). You want to investigate the role that these variables play in plant growth.  You decide to test the substrate and see if changing substrate mixes will affect plant growth. Match the following experimental components with their descriptions.    Experimental Components: ( Experimental Variable, Dependent Variable, Control Condition, Independent Variabe, A Confounding Variable That Must Be Held Constant)   1. type of substrate used:   2. growth resulting from substrate type   3. amount of water needed in all plants   4. substrate that is changed during the experiment   5. substrate that is not changed during the experiment

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