Read the excerpt from it's our world, too! : young people who are making a difference. at halftime, as homecoming floats circled the field, allison gibbons, a member of the student council, entered the press box, stood before the microphone, and asked for everyone's attention. the crowd grew silent as she began to read the letter. "i was watching the crowd while allison read it," andy said. "when she finished, there was silence, and then almost everyone stood up and cheered. all the students stood up. and the football players were all clapping. it was a wonderful feeling to know that we had people behind us." why does the crowd grow silent after the speech?

The crowd is silent after the speech because it is thinking about what Allison said. Her speech was powerful and must have had an impact. It seems they all agreed with what she said because after the silence everyone stood and cheered. Andy believes that meant that they "had people behind [them]." The title of the source text also tells us that Allison Gibbons did something that made a difference.

the answer a: perseverance !

an argumentative essay presents objectively a topic and its main characteristics. besides, it states all this information and facts by giving authentic and substantiated proof to the audience. by contrast, a persuasive text purpose is to convince the audience about some facts by presenting them according to his/her emotions and feelings. the main purpose of a persuasive text is to convince the audience to agree with the author´s opinion. on the other hand, in the argumentative essay, the author leads the writer to recognize his/her point of view as the correct one.