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The study question for an investigation is: What impact does plant food have on number of tomatoes produced by a tomato plant? Determine each type of variable in this investigation. Match the type of variable to each variable present in this investigation. [KA] | 3 | Type of soil | 3 | Amount of water | a | Number of tomatoes i. Res | a | Exposure to sunlight 2. dependent | 1 | Plant food a sores | 3 6 | Type of plant food | 3+ | Tomato plant