What should a reader consider when tracing chronological text structure?

(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.”)

Aclear technical document includes which element? a.complex sentence structure b.section headings c.abstract technical vocabulary d. long paragraphs

Read the passage from an argumentative essay. many endangered species are currently threatened by climate change. there are some laws already in place, but are they effective enough? anyone with a conscience knows that these creatures deserve the chance to survive without outside threats impeding their survival. i suppose this is a tough decision for lawmakers, but i hope they choose wisely. which statement best evaluates the claim in the passage?