The student’s research question is clear, focused, and fully relevant to the investigation, specifically addressing the impact of varying pH levels on the biomass gain of spring onions. The environmental issue of acid rain is effectively discussed, providing context for the research question, particularly in relation to Peru's agricultural challenges. Additionally, the student establishes a connection between the research question and the discussed environmental issue by examining how acid rain affects plant health and food security. However, the explanation of how acid rain relates to the tested pH levels lacks clarity and could benefit from further elaboration to enhance the reader's understanding.
