Multiple Choice
Which of the following is probably the MOST compelling reason to use unconventional sources of oil and natural gas in the United States?
A) There are a lot of them in North America.
B) They are easier to extract than conventional sources.
C) They are cleaner to burn than conventional sources.
D) Their extraction process is more environmentally friendly than conventional extraction.
E) They have a higher EROEI than conventional sources.
Correct Answer:

Verified
Correct Answer:
Verified
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