Which statement best explains how the author developed the central idea throughout the passage

Yes or no? biology is the study of rocks and minerals.

(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.”)

It is important to learn about finances. take, for instance, the old rule of saving ten percent of every paycheck. are most people aware that theyshould immediately take that percentage out of their paycheck and put it into savings? balancing your checkbook is another important element ofkeeping track of your money. buy a money tracking program and use it to manage your money. another important tip is to speak with a financialplanner and learn about stocks and bonds. come up with a savings plan that includes a 401k, stocks, and bonds. and start young. the longer youwait to save, the less compound interest you will accumulate.which is the best title for this paragraph?