Which word can replace the phrase "lack of similarity" without changing the meaning of this sentence?

the lack of similarity in project quality is related to how much effort was exerted in the production of each project.

beneficiary

formulation

disparity

paradox

the bottom of the ocean

write two paragraphs to compare and contrast the narrators’ schools and explain how their schools shape their perspectives toward the hijab. cite evidence from the text to support your ideas.

copy and paste answer:

two paragraphs to compare and contrast the narrator's schools would be this, the one school with the veil is the one school were the students were forced to wear the veils, and they did not know why they had to wear the veils. the girl student writing the story was not like the other students, she didn't care. in the second school there was a lot of hostile activities going on throughout the school. most of the students were upset and this, including the author, but she was trying to look and the good side of things.  

overall, both schools had something that the students or most of the students did not like or appreciate. what you can learn from these stories is that life will never be exactly how you may want it to be. complaining about your lifestyle will only make matters worse or at least feel worse in the long run. that's happens to be the information you can interpret from these two stories.