Plethora of Plastics Lab Background: (For your reading pleasure) Plastics are a rapidly growing segment of MSW (municipal solid waste). While plastics are found in all major MSW categories, the containers and packaging category (bags, sacks, and wraps, other packaging, PET bottles, jars and HDPE natural bottles, and other containers) has the most plastic tonnage at 13.9 million tons in 2011 (Figure 8 and Table 7). Generation. Plastics made up an estimated 390,000 tons of MSW generation in 1960. The quantity has increased relatively steadily to 31.8 million tons in 2011 (Figure 9). As a percentage of MSW generation, plastics were less than one percent in 1960, increasing to 12.7 percent in 2011. Recovery for Recycling. While overall recovery of plastics for recycling is relatively small - 2.7 million tons, or 8.3 percent of plastics generation in 2011 (Table 7) - recovery of some plastic containers is more significant. Discards After Recovery. Discards of Figure 9. Plastics generation and recovery, 1960 to 2011 plastics in MSW after recovery were 29.2 million tons, or 17.9 percent of total MSW 32 discards in 2011 (Table 3) 28 24 20 Generation million kar 12 Recovery 1950 1970 1875 1960 1990 2000 2004 2011 United States Environmental Protection Agency. (May 2013). Municipal solid waste in the United States: 2011 facts and figures. (Office of Solid Waste Publication No. EPA530-R-13-001). Washington, DC: U.S. Government Printing Office. Retrieved from https:/epis.epa.gov/Exe/ZyPDF.cgi/P100GMT6.PDF?Dockey=P100GMT6.PDFQUESTION 1 5 points Save Answer in the blanks in the chart below. ear years since 1960 189 187 204 27 93 28.71 30 49 QUESTION 2 points Save Answer scatter plot and examine the shape. What type of model do you think will fit the grannies discarded) into Excel. Make a Waste Recycling But Has A Long Way To So O Exponential growth QUESTION 3 15 points Save Answer Determine the best equation for P, millions of tons of p PO - v . v . QUESTION 4 what is the initial value of y S points Save Answer QUESTION S 2 points Save Answer True or False: The initial value True O False s not negative in 1960. QUESTION S What is the slope of the model of best fit? 5 points Save Answer QUESTION 7 S points Save Answer Meaning of slope in context of the problem: The amount of at a rate of per QUESTION 8 5 points Save Answer suming a linear trend continu QUESTION 9 5 points Save Answer ed on your linear model, er as the four-digit year. QUESTION 10 6 points Save Answer Part 2: Cumulative Global Plastic Waste the chart below holds data from https./ourworldindata orgiplastic-pollution. Ful in the missing values in the chart Years Since 1975 Total waste in millions of tons QUESTION 11 2 points Save Answer of model does the shape most closely resemble? Linear Inc O Exponential Decay QUESTION 12 15 points Save Answer Add an exponential model to the data. Write the equation for P, the stic, as a function of t, the time in years since 1975: Hint: The equation in Excel does not give you the r value. Recall: [ = exp(k) - 1 where k is exponent of "e" in Excel QUESTION 13 2 points Save Answer Rate how well you think the model sits the data Doesn't it at all Doesn't fit wel, but sorta-kinda matches the shape overa Doesn't fit wel, but shows the overall trend of the data Neither fts nor doesn't fit moderately well all over O Fits very well but doesn't exactly match the trend toward the end Fits perfectly QUESTION 14 5 points Save Answer What is the growth rate for the exponential model? Write your a For example. If your growth rate is 2.8256, write 2.82. QUESTION 15 S points Save Answer The meaning of the rate in context of the problem v is w at a rate of per QUESTION 16 5 points Save Answer Using the exponential model, predict how QUESTION 17 5 points Save Answer sing the