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Home Q & A Board Biology-Related Homework Help Zoology and Botany (Moderator: ehd123)
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bonganh1996 bonganh1996
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6 years ago

An energy _______________ is used to show the efficiency of crop production and reveals how much energy is required to produce crops.
 
 


 
  Fill in the blank(s) with the appropriate word(s).

Question 2

Approximately _______________ percent of the oil used in the U.S. goes to grow food.
 
  Fill in the blank(s) with the appropriate word(s).

Question 3

_______________ is a process by which the different hydrocarbons that make up crude oil are separated.
 
  Fill in the blank(s) with the appropriate word(s).

Question 4

Unconventional oil is petroleum that can be extracted from rocks known as tar sands and oil shale. The worlds largest deposits of tar sands are found in _______________.
 
 


 
  Fill in the blank(s) with the appropriate word(s).

Question 5

Which agricultural product grown in the U. S. is most energy efficient?
 
 

a. beef cattle c. chickens
  b. corn d. soybeans



Question 6

In 2012, the United States consumed nearly ____ percent of the worlds total oil use.
 
 

a. 11 c. 22
  b. 16 d. 34
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tennille1tennille1
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6 years ago
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bonganh1996 Author
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#2
6 years ago
This is very helpful, my teacher this year is not good
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