Phosphorus is a critical nutrient for sustaining plant and animal life. Phosphorus for crop fertilizer is mined from certain rock deposits, primarily in the United States, China, Morocco, and Tunisia. Examine the plot below of worldwide production of mined rock phosphorus (megatons, MT), since 1900 (Scholz and Wellmer, Global Environmental Change, 2013, 23 (1), 11-27). Answer the following questions based on your analysis of the phosphorus plot: a. What resource production model is appropriate for the world production of mined rock phosphorus? Why? b. When do you estimate that peak rock phosphate production occurs? At what peak production? c. Based on your production model, what will be the total amount (MT) of rock phosphorus mined worldwide? Use the following assumptions, as appropriate, for your production model: r= 1.0 %; o = 25 years.

Phosphorus is a critical nutrient for sustaining plant and animal life. Phosphorus for crop fertilizer is mined from certain rock deposits, primarily in the United States, China, Morocco, and Tunisia. Examine the plot below of worldwide production of mined rock phosphorus (megatons, MT), since 1900 (Scholz and Wellmer, Global Environmental Change, 2013, 23 (1), 11-27). Answer the following questions based on your analysis of the phosphorus plot: a. What resource production model is appropriate for the world production of mined rock phosphorus? Why? b. When do you estimate that peak rock phosphate production occurs? At what peak production? c. Based on your production model, what will be the total amount (MT) of rock phosphorus mined worldwide? Use the following assumptions, as appropriate, for your production model: r= 1.0 %; o = 25 years.

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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Question

8. Phosphorus is a critical nutrient for sustaining plant and animal life. Phosphorus for crop
fertilizer is mined from certain rock deposits, primarily in the United States, China, Morocco,
and Tunisia. Examine the plot below of worldwide production of mined rock phosphorus
(megatons, MT), since 1900 (Scholz and Wellmer, Global Environmental Change, 2013, 23
(1), 11-27). Answer the following questions based on your analysis of the phosphorus plot:
a. What resource production model is appropriate for the world production of mined rock
phosphorus? Why?
b. When do you estimate that peak rock phosphate production occurs? At what peak
production?
c. Based on your production model, what will be the total amount (MT) of rock phosphorus
mined worldwide? Use the following assumptions, as appropriate, for your production
model: r = 1.0 %; o = 25 years.
180-
(a)
160-
140-
120-
100-
80-
60-
40-
20어
of
1900
1950
1975
2000
2025
1925
2050
Year
Production (MT)

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