Which is more energetically favorable, biogas or ethanol? Does ...

[yoroshambo]

Which is more energetically favorable, biogas or ethanol? Does your answer differ at different places? Explain.
 
  What will be an ideal response?

Question 2

For use rates that depend on the number of people, the rates must increase exponentially as the number of people increases.
 
  What will be an ideal response?

[milbourne11]

Answer to Question 1

Ethanol needs an infrastructure of fermenters and distillers and the application of
thermal energy. Biogas does need the fermenter, but works otherwise without application of
energy. Biogas is always energetically favorable.

Answer to Question 2

This is correct. The number of births depends on the number of females, which in
turn is a proportion of the total population.

[yoroshambo]

Thanks

[milbourne11]

Welcome