Author Question: Miscanthus is a hardy perennial grass that can be grown just to produce ethanol to replace some of ... (Read 50 times)

crobinson2013 · **on:** Jul 16, 2018

Miscanthus is a hardy perennial grass that can be grown just to produce ethanol to replace some of the gasoline used to fuel automobiles. Unlike using corn grains to produce ethanol, the use of this grass to produce ethanol requires

A) more fossil fuels than it currently saves.
B) additional fertilizers and irrigation.
C) prime soil that would otherwise be used to grow food crops.
D) enzymes that break down cellulose to produce sugars.

Question 2

Current ethanol production as a fuel does not significantly reduce greenhouse gas emissions because

A) of the amount of fossil fuels required to produce the corn used in the process.
B) the process of fermentation produces a tremendous amount of carbon dioxide.
C) the process of fermentation produces a tremendous amount of methane.
D) burning ethanol or gasoline contributes the same net amount of carbon dioxide in the atmosphere.