. From the list in Article 1, which invention do you view as being the most impactful/important invention created?

Which of the following best explains why the author chose the compare-and-contrast structure for paragraph 2

(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.”)

Which two statements about first-person narration are generally true? the narrator can be a witness or a reteller of events. the narrator always provides reliable information. o the narrator accurately knows past and future events. the narrator is a character in the story. the narrator knows everything about all characters.