This
 diagram illustrates a biofuel Linking Words
call
 Replace the word
called
ethanol
 is produced- how Use synonyms
ethanol
 is made. 
Use synonyms
Overall
, the cycle has three main steps Linking Words
which
 arePunctuation problem
, which
,
 farming, processing and Punctuation problem
apply
final
 result. In Correct article usage
the final
final
 Correct article usage
the final
result
 it shows input and output at the same time. 
First of all of how Add a comma
result,
ethanol
 Use synonyms
made
 is farming, Verb problem
is made
that
Correct pronoun usage
which
,
 Punctuation problem
apply
taken
 the energy Wrong verb form
takes
Linking Words
such
 Punctuation problem
, such
as-
 sunlight, carbon Dioxide from the plants and the trees. Change preposition
as
Secondly
, it has Linking Words
start
 another step Wrong verb form
started
that is
 harvesting the plants and Linking Words
have
 pre-processing to Correct subject-verb agreement
has
be
 Verb problem
convert
cellulose
 by the machine. Correct article usage
the cellulose
Linking Words
Thirdly
 the cellulose will start processing in the lab by scientists . 
After Punctuation problem
Thirdly,
the 
processing the cellulose be sugars Correct article usage
apply
after
 Punctuation problem
, after
that 
Correct determiner usage
apply
was
 added Correct subject-verb agreement
were
microbes 
to the sugars Check wording
apply
and
 Punctuation problem
, and
finally
 the Linking Words
ethanol
 Use synonyms
produced
 Verb problem
was produced
by
 8 Change preposition
in
steeps
. The Use the right word
steps
ethanol
 becomes Use synonyms
a 
carbon dioxide Correct article usage
apply
which
 Punctuation problem
, which
uses
 in many things Wrong verb form
is used
especially
 in vehicles, Punctuation problem
, especially
for 
Linking Words
instance
 cars, trucks and Punctuation problem
instance,
plane
. After using it, the carbon dioxide will Fix the agreement mistake
planes
emissions
 and Check wording
be emitted
start 
the cycle begins again.Verb problem
apply