Answer Happy

Section EXERCISE 24 PROBLEMS-PART III The following questions are based on Figure 24-6, a chart showing average annual temperature from 1905 to 2015 in three U.S. cities: Nome, Alaska: Bozeman, Montana, and Tucson, Arizona. Generally, what has happened to average annual temperature in these three cities over the last century? 2. ture change over the last century in each city: indicate if the temperature has increased (+) F Using the straight best-fit line as an indicator, estimate the approximate observed tempera) or decreased (-). (Note: these answers are based on simplistic assumptions.) Tucson: Bozeman: Nome: (a) Looking at the annual temperature value dots (not the 5-year moving average). what is the warmest year shown on the chart for each of the cities? Tucson: Nome: "F °F Bozeman: (b) Nome: What is the coldest year shown on the chart for each of the cities? Tucson: Bozeman: Using the 5-year moving average lines for reference, in which of the cities does average annual temperature fluctuate the most from one year to the next or from one decade to the next? 4. (a) (b) Do all of the major warm and cold periods in Nome correspond to warm and cold periods in the other two cities? 5. Although greenhouse gas concentration has increased steadily over the last century (see Figure 24-1), based on your answers for questions 3 and 4, is increased greenhouse effect likely to be the only factor influencing temperature change in these cities? Why?