This one is the cause:
<span>growth of the factory system.
</span>
<span>Growth of the factory system lead to pollution (from the factory chimneys), it made people move from farms to the cities and as a result the number and size of cities increased. </span>
People who wanted to settle in Texas before the Mexican Revolution had to "<span>declare they would become loyal Spanish subjects," since Spain had been dealing with too many "trouble makers" in the region. </span>
Explanation:
Your conclusion wraps up your essay in a tidy package and brings it home for your reader
Your topic sentence should summarize what you said in your thesis statement
This suggests to your reader that you have accomplished what you set out to accomplish
Do not simply restate your thesis statement, as that would be redundant
Rephrase the thesis statement with fresh and deeper understanding
Your conclusion is no place to bring up new ideas
Your supporting sentences should summarize what you have already said in the body of your essay
If a brilliant idea tries to sneak into the final paragraph, you must pluck it out and let it have its own paragraph in the body, or leave it out completely
Your topic for each body paragraph should be summarized in the conclusion
Wrap up the main points
Your closing sentence should help the reader feel a sense of closure
Your closing sentence is your last word on the subject; it is your “clincher”
Demonstrate the importance of your ideas
Propel your reader to a new view of the subject
End on a positive note
Your closing sentence should make your readers glad they read your paper
Jim Crow Laws began with taking away voting from African-American then became a segregation between blacks and white.