i$)$ A maker of polypropylene $($PP$)$ garden furniture is concerned that the competition isstealing part of his market by claiming that cast iron is much less energy and CO$2$intensive than the PP$.$ A typical PP chair weighs $3\mathrm{.}2$ kg; one made of cast iron weighs$17$ kg$.$ Use the data for these two materials in the following Table to find out who isright. $(5$ pts$)$ii$)$ If the PP chair lasts $5$ years and the cast iron chair lasts $25$ years, does the conclusionchange? $(5$ pts$)$