What does uranium become when it has lost all of its radioactivity?

More Questions:

What stopper, necessary for champagne, did medieval monks invent?

Who invented the Moog synthesiser?

How many stitches are there on an official baseball used in Major League Baseball?

Who beheaded Medusa?

What country proclaimed the birth of its billionth citizen in 2000?

What US city is known as "The Insurance Capital of the World"?

Which country borders Rwanda to the west?

What river flows into the Pacific Ocean between Oregon and Washington?

According to a famous SNL catchphrase, what's the only prescription for Christopher Walken's fever?

What was the last name of the main family on the TV show "3rd Rock From the Sun"?

Who played the blind character in the movie "Places in the Heart"?

How did the founder of Vassar College accumulate his wealth?

What was New York's Liberty Island called before its name was changed in 1956?

What was the name of the first US human spaceflight?

Though not published first, which book in "The Chronicles of Narnia" series comes first chronologically?