The student provides a focused and detailed description of the research question, and a null and alternative hypothesis is stated and explained. The methodology of the investigation is highly appropriate to the topic and includes appropriate steps to assure the relevancy and validity of the obtained results. The student also shows full awareness of safety hazards, ethical concerns, and environmental issues that can arise during the experiment. However, the description of the main topic is not fully present in the introduction, and the background information provided is not relevant or focused. The biology behind the working mechanisms of fertilizers is explained but could have been more detailed.
