Crane's poem includes a "refrain?" Yes or no

(1) fire extended humans’ geographical boundaries by allowing them to travel into regions that were previously too cold to explore. (2) it also kept predators away, allowing early humans to sleep securely. (3) fire, in fact, has been a significant factor in human development and progress in many ways. (4) other obvious benefits of fire are its uses in cooking and in hunting. (5) probably even more important, however, is that learning to control fire allowed people to change the very rhythm of their lives. (6) before fire, the human daily cycle coincided with the rising and setting of the sun. (7) with fire, though, humans gained time to think and talk about the day’s events and to prepare strategies for coping with tomorrow. the sentence that expresses the main idea is: (type the number of the sentence. then click “go.”)

Read this excerpt from patrick henry's speech ''give me liberty or give me death.'' what is the main idea of the text

Which statement best describes hopping’s viewpoint and purpose in this excerpt? the author believes diane france should not display soldiers’ remains, and she writes to persuade readers to avoid visiting the museum. the author thinks a union warship caused the submarine to sink, and she writes to inform readers about the war. the author thinks stories about the civil war are interesting, and she writes to entertain readers with true war stories. the author believes diane france’s work in making bone casts has many scientists, and she writes to give details about her experienc