Summarize the water issue concerning the Catawba River

I need help making changes to this essay using these research articles: Wood, H. L., Spicer, J. I., & Widdicombe, S. (2008, August 7). Ocean acidification mayincrease calcification rates, but at a cost. Proceedings. Biological sciences. Miller, A. Whitman, et al. “Shellfish Face Uncertain Future in High CO2 World: Influence ofAcidification on Oyster Larvae Calcification and Growth in Estuaries.” PloS One, vol. 4, no. 5,2009, pp. e5661–e5661, https://doi.org/10.1371/journal.pone.0005661. Please I dont want Ai answer.

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A city’s sewage outfall flows 40 ft3/s of sewage with a BOD concentration of 30 mg/L anda DO of 1.5 mg / L into a small river that has a flow rate of 280 ft3/s and a velocity of 1.1 ft /s.The river has a natural BOD of 3.5 mg/L and at this time of year the DO level is 7 mg/L. Giventhe water temperature this time of year the DO saturation is 8.5 mg / L. Given a deoxygenationcoefficient of 0.59 day-1 and a rearation coefficient of 0.70 day-1, answer the following:a. what is the basic assumption we make regarded the mixing of waste into the river?b. calculate Do amd Lo just downstream from the outfallc. calculate the tiem and distance when DO is a minimumd. calculate the minimum DOe. Find the DO 10 miles downstream.