Need ! what is one way to organize ideas in a clear and concise manner? using adverbs subordination coordination using punctuation

This device blocks an opening along the base/floor of stairs or other walking or working surfaces where materials or body parts might otherwise inadvertently fall through. it should be 4 inches high, with not more than ¼ inch clearance above the floor

(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.”)

Elist of items that aditi is planning to include in her narrative essay. 1. i stayed after school once to work on a monologue with a teacher. 2. i learned about the audition for the spring musical at my school. 3. i realized that i need to practice more if i really want a role. 4. i went to the audition and barely remembered all my lines. what is the best order for these items? 1, 3, 2, 4 1, 2, 4, 3 2, 4, 3, 1 2, 1, 4, 3