The pictures above depict the 
process
 of creating Use synonyms
cement
, and later the Use synonyms
production
 of concrete. One noticeable feature is that Use synonyms
the 
Correct article usage
apply
cement
 Use synonyms
production
 is mostly a step-by-step Use synonyms
process
, Use synonyms
whereas
 Linking Words
the 
concrete Correct article usage
apply
production
 is mainly a one-step Use synonyms
process
 containing Use synonyms
mixture
 of different elements. 
The picture on the left describes the Add an article
a mixture
process
 of making Use synonyms
cement
 by Use synonyms
initiating 
mixing limestone with clayVerb problem
apply
,
 and putting Remove the comma
apply
them
 through a crusher. The produced powder is Correct pronoun usage
it
then
 run through a mixer first and Linking Words
then
 through a rotating heater. After receiving heat, the output is put on a grinder, which eventually produces the Linking Words
cement
. The Use synonyms
cement
 is Use synonyms
then
 bagged and shipped off to a construction location to make concrete. 
The Linking Words
production
 of concrete, as explained in the picture on the right, requires Use synonyms
mixing
 of different Correct article usage
the mixing
element
 with different ratios. Fix the agreement mistake
elements
Overall
, 15% Linking Words
cement
 is mixed with 10% water, 25% sand, and 50% gravel and Use synonyms
are
 all put in a giant mixer. The mixer Correct subject-verb agreement
is
then
 rotates clockwise for Linking Words
sometime
, after which the concrete is produced.Replace the word
some time