environmental questions

environmental questions

I need you to answer this environmental questions. you have to take the answers from the video that its link in the files.

envr_172_al_bartlett_questions (1)

 

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ENVR 172 Al Bartlett Questions

 

  1. (Steady growth) 70 divided by the percent growth per unit time = doubling time

Doubling time is extremely important to understand because of the ramifications for not only population size but also energy useand just about any consumptive resource that we would use.

 

e.g. assume a population is increasing by 5%, calculate the doubling time.

 

70

5 % growth = 14 years doubling time

 

70

7 % growth   = 10 years

 

1. Assume that you have 60 years left to live on planet earth before moving above earth.  Today the car that you would like to purchase costs $35,000 brand new out the door including taxes and tags. 

(900 words)

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