What is a 1-2 sentence summary of “cool roofs” by David Feeley

Compare the excerpt you read from the introduction of great astronomers to the article you read about gis. what differences in purpose and tone do you notice?

Which change should be made to improve this sentence? allen jumped in the puddle and his new shoes got wet and muddy. a)the new shoes got wet and muddy and allen jumps in the puddle. b)allen jumped in the puddle and got his new shoes wet and muddy. c)allen jumped in the puddle and gets his new shoes wet and muddy. d)the new shoes are getting wet and muddy and allen jumped in the puddle.

(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.”)