What "equine" species of mussel jumped from the Caspian Sea and spread through the Great Lakes as an invasive species in the 1980s?
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Question 2 of 10
What two countries share the worlds longest undefended land border?
Question 3 of 10
Carlos Slim, the world's second richest man, comes from which country?
Question 4 of 10
What is a 9 letter word meaning "any state of great happiness"?
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Question 5 of 10
Which global superstar had twins called Rumi and Sir in 2017?
Question 6 of 10
Despite not taking up painting until she was middle aged, what UK artist was known for fun, boldly colored paintings of fat British people doing typically British things?
Question 7 of 10
Which of these sisterly acts reunited without LaVerne for a 1974 Broadway show called "Over There"?
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Question 8 of 10
Which type of football was a demonstration sport in the 1956 Melbourne Olympics?
Question 9 of 10
Which of these countries is not in Central America?
Question 10 of 10
Also known as the "Rose City", Petra is in which country?