The student has outlined a method that is appropriate for the research question, involving systematic data collection of nitrates and dissolved oxygen from multiple water sources, which enhances the reliability of results. The proposed method allows for the collection of relevant and sufficient data, with clear tables and calculations that support the investigation. However, the method lacks sufficient detail for replication, as it does not specify the equipment used or the calibration process. Additionally, the sampling approach is not clearly outlined, and the reasoning for site selection is missing, which could improve the clarity of the investigation. The student has identified risks and environmental considerations associated with the exploration, but ethical considerations were not addressed, indicating an area for improvement in the investigation.
