The main objective is to use algebra (mainly calculus) to estimate the impact of sewage discharges in Japan, under what circumstances they would significantly affect the environment, and to propose the best solutions for securing the marine environment (may refer to link 1)
Use Math knowledge within high school and should involves some college math(math beyond high school), make sure it is mainly based on high school knowledge and do not go to far. It is not a math college essay!!! Mathematical reasoning process is essential.
be sure to follow the criteria(high marks) and the structure(would check with the sample essays)
should include in-text works cited and citation page, do not include cover page
following link 1 and 2 are papers related to the topic, File 1, 2 and 3 are sample essays and File 4 is the criteria for the paper
link 1：https://www.tandfonline.com/doi/abs/10.5408/0022-1368-36.1.4
link 2：http://article.sapub.org/10.5923.j.ajcam.20231302.01.html