Guys idk what a media piece is! brainliest and all points. khianna is preparing an informational presentation that discusses three different ways the dinosaurs could've went extinct. the first is that an asteroid hit the earth, the second is climate change, and the third is that all dinosaurs evolved into birds. what types of media would be most effective in khiannas presentation, and why? what types of media should not be included in the presentation? describe 2 media pieces that would be effective, and two that would not.

(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 are the authors purposes in writing its our world too young people who are making a difference

According to the article "clemente's impact wanes in puerto rico 40 years after his death," what happens in puerto rico in 2012 to celebrate the anniversary of clemente's 3000th hit?