the new york times chimpanzees clear some doubt after generosity is questioned what is the purpose of this article

"this year she had the extra joy of showing it to her small brother, and of terrifying him as well as herself. when they had done this many times they came back to the house to tell everybody that they had done it. he boasted. she mocked. they squabbled." how does julia feel about her little brother? does she love him? hate him? find him an annoyance? be sure you read what is implied by their reactions to each other.

Place the steps of the strategy for reading technical information in the correct order.

(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.”)