Question

fiona wants to answer the question: do plants grow more when given chemical or natural fertilizer? which statement is an appropriate hypothesis for this question? if plants are given chemical and natural fertilizer, then they will grow because all plants need fertilizer. if plants do not grow, then they need chemical and natural fertilizer because fertilizers help plants grow. if plants do not grow, then they should be given natural fertilizer because this kind of fertilizer is more effective. if plants are given chemical fertilizer, then they will grow more because this kind of fertilizer has more nutrients that the plants need.

Explanation:

A hypothesis should directly address the comparison in the question (chemical vs natural fertilizer) and make a prediction. The first option doesn't clearly compare the two types. The second and third options don't focus on the comparison of chemical vs natural. The fourth option correctly compares chemical fertilizer (predicts it will make plants grow more) and gives a reason related to nutrient content (which is relevant to plant growth).

Answer:

If plants are given chemical fertilizer, then they will grow more because this kind of fertilizer has more nutrients that the plants need.