Final answer:
The text in the second paragraph of the excerpt is structured using the chronological format.
Step-by-step explanation:
The text in the second paragraph of the excerpt is structured using the chronological format. It presents a series of events in the order in which they occurred, starting with the formation of the United Farm Workers (UFW) by Dolores Huerta and Cesar Chavez in 1962, and ending with the strike and boycott that led to the recognition of the union by California farmers in 1970. The paragraph provides a timeline of key events in the Mexican American civil rights movement and illustrates the progress made by activists during that time.