Problem 6 In EXCEL, on 1 figure, plot the D0 vs time for problems 4 and 5, both with and without a wastewater treatment plant (i.e. the graph should have

four lines – 1 for an initial deficit of 0 and no sewage treatment, 1 for an initial deficit of 0but with a sewage treatment such that DO never drops below 5mg/L, 1 for an initial deficit of 2 mg/L and no sewage treatment,1 for an initial deficit of 2 mg/L but with a sewage treatment such that DO never drops below 5 mg/L). Show the data over along enough period of time to clearly show the full curve (at some point, it just levels off to DO sat; so show just enough data to make that obvious, and with plenty enough data points that the entire curve is very easily seen regardless of they are connected with lines or not). (full credit only for graphs that students take time to make professional looking and pretty). Forced it, you MUST SEND ME THE EXCEL FILE!