Post category:Everyday SciencePost comments:0 CommentsAccording to Big Bang Theory, the Universe began about __________ billion years ago.A. 10 – 20B. 20 – 30C. 30 – 40D. 40 – 50Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) You Might Also Like Which planet looks reddish in the sky…? June 1, 2019 The average adult has a blood volume of ? April 8, 2019Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email. Notify me of new posts by email.