The diagram below provides how a biofuel called 
ethanol
 is produced.
Use synonyms
Overall
, it is a cyclic process which contains 8 steps, starting with gaining energy from the sun and finishing with emitting Linking Words
of 
carbon dioxide into the air.
First of all, for growing Change preposition
apply
of 
plants and trees, they gain energy from sunlight and carbon dioxide to themselves.
After growing to normal size, people will harvest them with their combines and Change preposition
apply
then
, collected plants will be pre-processed by machines. In the next part of the process, Linking Words
produced
 cellulose will be taken into Correct article usage
the produced
laboratory
.
Add an article
the laboratory
Then
, scientists will make sugars and for Linking Words
final
 step of making Add an article
the final
ethanol
 microbes will be added Use synonyms
into
 Change preposition
to
sugars
.
Correct article usage
the sugars
That is
 how Linking Words
ethanol
 is produced
Use synonyms
Furthermore
, as a main part of the biofuel, Linking Words
ethanol
 is used for Use synonyms
loots
 of transports Correct your spelling
lots
such
 as planes, trucks and cars. Linking Words
Then
, Linking Words
while
 driving these vehicles, carbon dioxide is reproduced and Linking Words
this
 cyclic process Linking Words
start
 again.Change the verb form
starts