1. you are researching the photographer diane arbus and find a magazine article about 20th century female photographers. this source is: a. primary source b. secondary source 2. you are researching the development of the telephone. you find a forum on the web from random english teachers who log in with made-up names. they rant about how texting is ruining this generation's written communication skills. this source is: possibly usable unusable 3. you are researching the care boa constrictors. you score an interview with the owner of an exotic pet shop who owns and breeds these snakes. this source is: possibly usable unusable

(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.”)

What does this excerpt from act of romeo and juliet reveal about lord montague?

Which textbook section would you use to identify the books and articles the author used or referred to in writing the book? introduction bibliography index table of contents