Final answer:
Adding fertilizer to soil can have drawbacks, such as nutrient runoff and over-fertilization. These drawbacks are supported by evidence and are not applicable to all types of fertilizer.
Step-by-step explanation:
Adding fertilizer to soil can have drawbacks. One drawback is the potential for nutrient runoff, which can lead to water pollution. Another drawback is the possibility of over-fertilization, which can harm plants and disrupt the balance of nutrients in the soil. The evidence supporting these drawbacks includes studies on the impact of fertilizer runoff on aquatic ecosystems and research on the negative effects of excessive fertilizer use on plant health. These drawbacks are not relevant to all types of fertilizer, as some fertilizers are formulated to minimize runoff and provide balanced nutrition to plants.
Learn more about Drawbacks of adding fertilizer to soil