I need help understanding what these quotes mean.

1. "Some historians today express sorrow at the kind of prideful segregation in America, saying that the clinging to ethnicity, in background and custom, has undermined the concept of unity" What does this mean?Do you agree or disagree with the claim of “some historians”?

2. “...the left side of the hyphen — African-American, Mexican-American, Irish American—would overwhelm the right”? What does this mean?

Myths often function as a connection to the , or the customs and beliefs, of a group of people.

Why is reasoning relivant to reading and evaluate text?

Read the rough draft of a student's conclusion to anargumentative editorial.(1) year-round schooling would student achievement.(2) not so much information would have to be crammed intonine months. (3) furthermore, the elimination of long breaks,particularly summer break, would significantly reduce"learning loss" and the additional time wasted at thebeginning of each academic year to reteach previouslylearned material. (4) it is clear that year-round schooling students learn and retain more. (5) the united staleis not the only country to experiment with a year-roundschool schedule. (6) although many still claim that evidenceabout year-round school and its link to higher achievement isinconclusive, these people need to open their eyes and seethat students in these schools consistently score higher oncertain assessments than students who attend schools withtraditional nine-month calendars. (7) it is about time that wereplaced our outdated and inefficient school calendars.which best revises sentence 6 to create a more appropriate and respectful tone