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Author Question: Describe some of the difficulties people have in making good longterm predictions. What will be ... (Read 28 times)

stephzh

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on: Jul 28, 2018
Describe some of the difficulties people have in making good longterm predictions.
 
  What will be an ideal response?

Question 2

It takes fewer and fewer workers to produce crops in developed countries because of substitution of machines that ultimately run on fossil fuel for hand labor.
 
  What will be an ideal response?


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Sarahjh

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Reply #1 on: Jul 28, 2018
Answer to Question 1

Is the growth linear or exponential? Could it be logistic?

Answer to Question 2

That is the casethe use of mechanical aids has replaced human labor. According
to the book, Figure 24.9, there is a ratio of 10 to 1 of energy output to input. Richard
Manning in Harper's Magazine from February 2004 wrote, in concurrence, A two-pound
bag of breakfast cereal burns the energy of a half-gallon of gasoline in its making. All
together the food-processing industry in the United States uses about ten calories of fossil
fuel energy for every calorie of food energy it produces.


stephzh

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


Sarahjh

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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