If we imagine the history of the universe compressed into one year, dinosaurs became extinct Naim 08:30 Astronomy Chapter 1 If we imagine the history of the universe compressed into one year, dinosaurs became extinct A) about 6 months ago. B) about 3 weeks ago. C) yesterday morning. D) about an hour ago. Answer: C Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+