Fiona wants to answer this question: "Do plants grow more when given chemical or natural fertilizer?”Which statement is an appropriate hypothesis for this question?

A hypothesis is a testable prediction that addresses the question and gives a reason. Choice D predicts that plants given chemical fertilizer will grow more and explains why: it says the fertilizer has more nutrients. The other choices do not compare which fertilizer leads to greater growth, or they make claims that do not directly answer the question.

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