Question: Using the model in the text and the data in Table 9.6 shown below, find how long it would take for 90% of the pollution

Using the model in the text and the data in Table 9.6 shown below, find how long it would take for 90% of the pollution to be removed from Lake Michigan and from Lake Ontario, assuming no new pollutants are added. Explain how you can tell which lake will take longer to be purified just by looking at the data in the table.

Table 9.6 Volume and outflow in Great Lakes Superior Michigan Erie Ontario

Table 9.6 Volume and outflow in Great Lakes Superior Michigan Erie Ontario V (km) r (km/year) 65.2 158 175 209 12,200 4900 460 1600

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